<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e21fb-0b50-7a7f-bab7-7add9834626f,g:2cfaea94-dc22-4acd-b249-ee289e8c2b4f-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.mscincomefund.com/role/Cover" xlink:type="simple" xlink:href="msif-20260630.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e21fb-1cf6-7fa5-8d5f-0c4e6eddbe37" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_DocumentType_019e21fb-1cf6-7fa5-8d5f-0c4e6eddbe37" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_019e21fb-1cf6-7998-a4b0-c38a2557d162" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentQuarterlyReport"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_DocumentQuarterlyReport_019e21fb-1cf6-7998-a4b0-c38a2557d162" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e21fb-1cf6-7567-bebd-7a8ff891f19b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_DocumentPeriodEndDate_019e21fb-1cf6-7567-bebd-7a8ff891f19b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_019e21fb-1cf6-7026-b8fc-52b4a73859db" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentTransitionReport"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_DocumentTransitionReport_019e21fb-1cf6-7026-b8fc-52b4a73859db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e21fb-1cf6-74e3-90c0-08d20b4a45f3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityFileNumber_019e21fb-1cf6-74e3-90c0-08d20b4a45f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e21fb-1cf6-7278-bfe1-f77c67fc0e5e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityRegistrantName_019e21fb-1cf6-7278-bfe1-f77c67fc0e5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e21fb-1cf6-7377-9f1e-9a35f3f2a1ad" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e21fb-1cf6-7377-9f1e-9a35f3f2a1ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e21fb-1cf6-7e3a-8d95-c62fdc59fe2d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e21fb-1cf6-7e3a-8d95-c62fdc59fe2d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e21fb-1cf6-7b60-8105-f9959515311f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityAddressAddressLine1_019e21fb-1cf6-7b60-8105-f9959515311f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019e21fb-1cf6-7fe1-827f-0396ac59e80c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityAddressAddressLine2_019e21fb-1cf6-7fe1-827f-0396ac59e80c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e21fb-1cf6-7f43-b182-16f41fcc442a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityAddressCityOrTown_019e21fb-1cf6-7f43-b182-16f41fcc442a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e21fb-1cf6-7524-9539-33f44abc1c66" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityAddressStateOrProvince_019e21fb-1cf6-7524-9539-33f44abc1c66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e21fb-1cf6-72b3-9036-be03243753c9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityAddressPostalZipCode_019e21fb-1cf6-72b3-9036-be03243753c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e21fb-1cf6-72c0-ad48-fc2ba154f9a4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_CityAreaCode_019e21fb-1cf6-72c0-ad48-fc2ba154f9a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e21fb-1cf6-74ec-99a8-b64900110bea" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_LocalPhoneNumber_019e21fb-1cf6-74ec-99a8-b64900110bea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e21fb-1cf6-7681-ad41-abbad7839d3b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_Security12bTitle_019e21fb-1cf6-7681-ad41-abbad7839d3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e21fb-1cf6-7a91-b7be-4c23548d0226" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_TradingSymbol_019e21fb-1cf6-7a91-b7be-4c23548d0226" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e21fb-1cf6-7352-827f-9ac706f5d7d2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_SecurityExchangeName_019e21fb-1cf6-7352-827f-9ac706f5d7d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_019e21fb-1cf6-741e-b373-f3f274648bb7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCurrentReportingStatus"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityCurrentReportingStatus_019e21fb-1cf6-741e-b373-f3f274648bb7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_019e21fb-1cf6-7266-a4b7-f6e8a52deaaf" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityInteractiveDataCurrent_019e21fb-1cf6-7266-a4b7-f6e8a52deaaf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_019e21fb-1cf6-7251-bc66-80d8d72bc783" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFilerCategory"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityFilerCategory_019e21fb-1cf6-7251-bc66-80d8d72bc783" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_019e21fb-1cf6-7ac6-b22f-45b45586b035" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitySmallBusiness"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntitySmallBusiness_019e21fb-1cf6-7ac6-b22f-45b45586b035" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e21fb-1cf6-71f4-b94d-6a24a53f9946" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e21fb-1cf6-71f4-b94d-6a24a53f9946" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_019e21fb-1cf6-7baf-8d7b-0f2d2e6f4c6a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityShellCompany"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityShellCompany_019e21fb-1cf6-7baf-8d7b-0f2d2e6f4c6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_019e21fb-1cf6-7b37-9ed9-610d39d214b2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_019e21fb-1cf6-7b37-9ed9-610d39d214b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e21fb-1cf6-7938-93e3-9852d2350e70" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_EntityCentralIndexKey_019e21fb-1cf6-7938-93e3-9852d2350e70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019e21fb-1cf6-7d73-a48b-490fbb605206" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_CurrentFiscalYearEndDate_019e21fb-1cf6-7d73-a48b-490fbb605206" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_019e21fb-1cf6-79af-b501-e00d441c8e84" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalYearFocus"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_DocumentFiscalYearFocus_019e21fb-1cf6-79af-b501-e00d441c8e84" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_019e21fb-1cf6-77f2-b97e-fa90a9712d4e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_DocumentFiscalPeriodFocus_019e21fb-1cf6-77f2-b97e-fa90a9712d4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e21fb-1cf6-7d7f-bd74-1dfde5713e83" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e21fb-1cf6-745a-9353-7558b43f2e1f" xlink:to="loc_dei_AmendmentFlag_019e21fb-1cf6-7d7f-bd74-1dfde5713e83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedBalanceSheets"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_019e21fb-1cf6-7740-9d6e-93d798ab224e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019e21fb-1cf6-7c86-827c-d08bdcf074c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_019e21fb-1cf6-7740-9d6e-93d798ab224e" xlink:to="loc_us-gaap_StatementTable_019e21fb-1cf6-7c86-827c-d08bdcf074c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7db5-b728-8bc7cebdbb4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7c86-827c-d08bdcf074c4" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7db5-b728-8bc7cebdbb4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7d3f-b550-25bc785a0a57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7db5-b728-8bc7cebdbb4f" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7d3f-b550-25bc785a0a57" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-7869-a06e-62421a060995" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerControlledMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7d3f-b550-25bc785a0a57" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-7869-a06e-62421a060995" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-7188-a34e-2167fb02a3e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7d3f-b550-25bc785a0a57" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-7188-a34e-2167fb02a3e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-7cf9-85ff-dfa5bada368f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentUnaffiliatedIssuerMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7d3f-b550-25bc785a0a57" xlink:to="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-7cf9-85ff-dfa5bada368f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e21fb-1cf6-7915-87f4-c84529250052" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7c86-827c-d08bdcf074c4" xlink:to="loc_us-gaap_CreditFacilityAxis_019e21fb-1cf6-7915-87f4-c84529250052" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e21fb-1cf6-74ba-89fe-52ed5900d94b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_019e21fb-1cf6-7915-87f4-c84529250052" xlink:to="loc_us-gaap_CreditFacilityDomain_019e21fb-1cf6-74ba-89fe-52ed5900d94b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1cf6-7f7f-8b91-db1101eeda3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_019e21fb-1cf6-74ba-89fe-52ed5900d94b" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1cf6-7f7f-8b91-db1101eeda3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1cf6-78c0-8b20-cc9ecafb632c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7c86-827c-d08bdcf074c4" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1cf6-78c0-8b20-cc9ecafb632c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1cf6-7476-a9c8-010770500189" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1cf6-78c0-8b20-cc9ecafb632c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1cf6-7476-a9c8-010770500189" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e21fb-1cf6-78e6-abae-5ac3202b5385" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1cf6-7476-a9c8-010770500189" xlink:to="loc_us-gaap_LineOfCreditMember_019e21fb-1cf6-78e6-abae-5ac3202b5385" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019e21fb-1cf6-7014-8579-0861687e8c3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1cf6-7476-a9c8-010770500189" xlink:to="loc_us-gaap_UnsecuredDebtMember_019e21fb-1cf6-7014-8579-0861687e8c3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1cf6-7aeb-b7f9-f166682e5a5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7c86-827c-d08bdcf074c4" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1cf6-7aeb-b7f9-f166682e5a5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-79ec-898f-274f95d985ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1cf6-7aeb-b7f9-f166682e5a5e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-79ec-898f-274f95d985ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_October2026NotesMember_019e21fb-1cf6-71b2-957a-71591114149a" xlink:href="msif-20260630.xsd#msif_October2026NotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-79ec-898f-274f95d985ac" xlink:to="loc_msif_October2026NotesMember_019e21fb-1cf6-71b2-957a-71591114149a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_May2029NotesMember_019e21fb-1cf6-75c1-9dc4-9b125dc147dd" xlink:href="msif-20260630.xsd#msif_May2029NotesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-79ec-898f-274f95d985ac" xlink:to="loc_msif_May2029NotesMember_019e21fb-1cf6-75c1-9dc4-9b125dc147dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7c86-827c-d08bdcf074c4" xlink:to="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:to="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1cf6-7557-ad35-7dc7c0695d33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1cf6-7557-ad35-7dc7c0695d33" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e21fb-1cf6-74b2-9a11-b82e8970e5ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e21fb-1cf6-74b2-9a11-b82e8970e5ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InterestAndDividendReceivable_019e21fb-1cf6-796f-8111-bf486fb2f8f0" xlink:href="msif-20260630.xsd#msif_InterestAndDividendReceivable"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:to="loc_msif_InterestAndDividendReceivable_019e21fb-1cf6-796f-8111-bf486fb2f8f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssets_019e21fb-1cf6-7e8d-9721-73375b2b98b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssets"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssets_019e21fb-1cf6-7e8d-9721-73375b2b98b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019e21fb-1cf6-7136-a381-b2248745d5f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019e21fb-1cf6-7136-a381-b2248745d5f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e21fb-1cf6-798e-bca7-8191fdc4efa2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_019e21fb-1cf6-7687-9878-39621bd321d4" xlink:to="loc_us-gaap_Assets_019e21fb-1cf6-798e-bca7-8191fdc4efa2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:to="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e21fb-1cf6-7da0-bb92-1f49ab547669" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_LongTermDebt_019e21fb-1cf6-7da0-bb92-1f49ab547669" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilities_019e21fb-1cf6-7a70-abbd-32b6dbad3a23" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndOtherAccruedLiabilities"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilities_019e21fb-1cf6-7a70-abbd-32b6dbad3a23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_019e21fb-1cf6-7b4d-971b-8ad0f4097a5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_InterestPayableCurrentAndNoncurrent_019e21fb-1cf6-7b4d-971b-8ad0f4097a5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019e21fb-1cf6-72af-b173-808713246fe8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019e21fb-1cf6-72af-b173-808713246fe8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ManagementFeePayable_019fb548-f168-7595-9272-942b0c8f6b60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementFeePayable"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_ManagementFeePayable_019fb548-f168-7595-9272-942b0c8f6b60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncentiveFeePayableCapitalGainBased_019fb548-f937-7bb6-9169-202d5faf6cc4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncentiveFeePayableCapitalGainBased"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_IncentiveFeePayableCapitalGainBased_019fb548-f937-7bb6-9169-202d5faf6cc4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e21fb-1cf6-76f4-8dce-5bea66f467a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019e21fb-1cf6-76f4-8dce-5bea66f467a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e21fb-1cf6-79ab-b53d-7c70f4b66614" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_019e21fb-1cf6-720f-a947-f92b9ea71f2c" xlink:to="loc_us-gaap_Liabilities_019e21fb-1cf6-79ab-b53d-7c70f4b66614" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019e21fb-1cf6-764e-a9c1-077f723f5f71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019e21fb-1cf6-764e-a9c1-077f723f5f71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_019e21fb-1cf6-71e1-b2c4-d63c750be721" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:to="loc_us-gaap_StockholdersEquityAbstract_019e21fb-1cf6-71e1-b2c4-d63c750be721" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019e21fb-1cf6-7f1c-9211-74b879a1f4c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019e21fb-1cf6-71e1-b2c4-d63c750be721" xlink:to="loc_us-gaap_CommonStockValue_019e21fb-1cf6-7f1c-9211-74b879a1f4c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019e21fb-1cf6-707a-b0ed-02080743dc7b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019e21fb-1cf6-71e1-b2c4-d63c750be721" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019e21fb-1cf6-707a-b0ed-02080743dc7b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e21fb-1cf6-7106-a961-a5f5d679cfbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019e21fb-1cf6-71e1-b2c4-d63c750be721" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e21fb-1cf6-7106-a961-a5f5d679cfbb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e21fb-1cf6-7705-ab22-792c4ecd947c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019e21fb-1cf6-71e1-b2c4-d63c750be721" xlink:to="loc_us-gaap_StockholdersEquity_019e21fb-1cf6-7705-ab22-792c4ecd947c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e21fb-1cf6-77c4-b50f-fc233c7d775b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e21fb-1cf6-77c4-b50f-fc233c7d775b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetAssetValuePerShare_019e21fb-1cf6-7127-bfdd-46ca561a3b03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetAssetValuePerShare"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-719d-8dce-089f89b41283" xlink:to="loc_us-gaap_NetAssetValuePerShare_019e21fb-1cf6-7127-bfdd-46ca561a3b03" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedBalanceSheetsParenthetical"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_019e21fb-1cf6-73bc-8e65-7de1771d1e23" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019e21fb-1cf6-7e84-9d9e-6ecd5f661e6e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_019e21fb-1cf6-73bc-8e65-7de1771d1e23" xlink:to="loc_us-gaap_StatementTable_019e21fb-1cf6-7e84-9d9e-6ecd5f661e6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-77a5-9d8e-694bc9cf4394" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7e84-9d9e-6ecd5f661e6e" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-77a5-9d8e-694bc9cf4394" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7714-91c5-4921f744cebc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-77a5-9d8e-694bc9cf4394" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7714-91c5-4921f744cebc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-7d8e-8354-e5e506083e49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerControlledMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7714-91c5-4921f744cebc" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-7d8e-8354-e5e506083e49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-74d9-96a0-bf18583a33b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7714-91c5-4921f744cebc" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-74d9-96a0-bf18583a33b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-7533-9d21-51017e42c439" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentUnaffiliatedIssuerMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7714-91c5-4921f744cebc" xlink:to="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-7533-9d21-51017e42c439" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1cf6-7dbb-a35e-a3bad6d01a7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7e84-9d9e-6ecd5f661e6e" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1cf6-7dbb-a35e-a3bad6d01a7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-77f1-8aae-60e6fbe44dd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1cf6-7dbb-a35e-a3bad6d01a7d" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-77f1-8aae-60e6fbe44dd3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_October2026NotesMember_019e21fb-1cf6-7a53-bd3d-de94daee1785" xlink:href="msif-20260630.xsd#msif_October2026NotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-77f1-8aae-60e6fbe44dd3" xlink:to="loc_msif_October2026NotesMember_019e21fb-1cf6-7a53-bd3d-de94daee1785" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_May2029NotesMember_019e21fb-1cf6-7a3e-89be-ebc24014944f" xlink:href="msif-20260630.xsd#msif_May2029NotesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1cf6-77f1-8aae-60e6fbe44dd3" xlink:to="loc_msif_May2029NotesMember_019e21fb-1cf6-7a3e-89be-ebc24014944f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1cf6-7f49-aa22-27d3e042cb78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7e84-9d9e-6ecd5f661e6e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1cf6-7f49-aa22-27d3e042cb78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1cf6-741f-be4b-55678a52c206" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1cf6-7f49-aa22-27d3e042cb78" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1cf6-741f-be4b-55678a52c206" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019e21fb-1cf6-78e3-ad2b-a1b8f398394d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1cf6-741f-be4b-55678a52c206" xlink:to="loc_us-gaap_UnsecuredDebtMember_019e21fb-1cf6-78e3-ad2b-a1b8f398394d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-7e84-9d9e-6ecd5f661e6e" xlink:to="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1cf6-70c5-86df-dbbb59335e77" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:to="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1cf6-70c5-86df-dbbb59335e77" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedAmortizationDeferredFinanceCosts_019e21fb-1cf6-7d9d-9426-c7aec40bd395" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedAmortizationDeferredFinanceCosts"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:to="loc_us-gaap_AccumulatedAmortizationDeferredFinanceCosts_019e21fb-1cf6-7d9d-9426-c7aec40bd395" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019fa3cf-db5c-78f2-aeca-a630c2c6770e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019fa3cf-db5c-78f2-aeca-a630c2c6770e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019e21fb-1cf6-7fb3-af8d-bbab865ffc79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019e21fb-1cf6-7fb3-af8d-bbab865ffc79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019e21fb-1cf6-7484-9acb-10415a9a2c44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019e21fb-1cf6-7484-9acb-10415a9a2c44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019e21fb-1cf6-7ab1-a3d5-41ac48936e32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:to="loc_us-gaap_CommonStockSharesIssued_019e21fb-1cf6-7ab1-a3d5-41ac48936e32" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019e21fb-1cf6-7577-bafb-1a4ba7381a97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-735e-a9c9-7c8cd491b7af" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019e21fb-1cf6-7577-bafb-1a4ba7381a97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedStatementsofOperations"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedStatementsofOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_019e21fb-1cf6-7f7d-85e1-f24a7847c935" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019e21fb-1cf6-740f-ae0e-aee5194dbe4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_019e21fb-1cf6-7f7d-85e1-f24a7847c935" xlink:to="loc_us-gaap_StatementTable_019e21fb-1cf6-740f-ae0e-aee5194dbe4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7935-9be8-13439b6751ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-740f-ae0e-aee5194dbe4f" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7935-9be8-13439b6751ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7c72-8d4f-f01482476840" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7935-9be8-13439b6751ae" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7c72-8d4f-f01482476840" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-77a4-9e3a-8498d410a093" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerControlledMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7c72-8d4f-f01482476840" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-77a4-9e3a-8498d410a093" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-7509-8381-805add4c658e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7c72-8d4f-f01482476840" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-7509-8381-805add4c658e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-78ef-a479-5b41bf1dd67d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentUnaffiliatedIssuerMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-7c72-8d4f-f01482476840" xlink:to="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-78ef-a479-5b41bf1dd67d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-740f-ae0e-aee5194dbe4f" xlink:to="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeNetAbstract_019e21fb-1cf6-7cbb-8135-7293538ab1d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeNetAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_InvestmentIncomeNetAbstract_019e21fb-1cf6-7cbb-8135-7293538ab1d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperatingPaidInCash_019fcd91-a6c0-7cfa-9bb9-5e1b5b463996" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperatingPaidInCash"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIncomeNetAbstract_019e21fb-1cf6-7cbb-8135-7293538ab1d0" xlink:to="loc_us-gaap_InterestIncomeOperatingPaidInCash_019fcd91-a6c0-7cfa-9bb9-5e1b5b463996" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperatingPaidInKind_019ecc42-0f54-7ea6-9fd7-626fff0a718f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperatingPaidInKind"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIncomeNetAbstract_019e21fb-1cf6-7cbb-8135-7293538ab1d0" xlink:to="loc_us-gaap_InterestIncomeOperatingPaidInKind_019ecc42-0f54-7ea6-9fd7-626fff0a718f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeDividend_019eca7e-abfa-7459-b73c-3852e01bdfb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeDividend"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIncomeNetAbstract_019e21fb-1cf6-7cbb-8135-7293538ab1d0" xlink:to="loc_us-gaap_InvestmentIncomeDividend_019eca7e-abfa-7459-b73c-3852e01bdfb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FeeIncome_019eca7e-f57a-7f48-8525-2dad1635d753" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FeeIncome"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIncomeNetAbstract_019e21fb-1cf6-7cbb-8135-7293538ab1d0" xlink:to="loc_us-gaap_FeeIncome_019eca7e-f57a-7f48-8525-2dad1635d753" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossInvestmentIncomeOperating_019e21fb-1cf6-75bb-b67c-e598396e337c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossInvestmentIncomeOperating"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIncomeNetAbstract_019e21fb-1cf6-7cbb-8135-7293538ab1d0" xlink:to="loc_us-gaap_GrossInvestmentIncomeOperating_019e21fb-1cf6-75bb-b67c-e598396e337c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestAndDebtExpenseAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating_019e21fb-1cf6-7041-bcbb-0fc4d052a056" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseOperating"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_InterestExpenseOperating_019e21fb-1cf6-7041-bcbb-0fc4d052a056" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ManagementFeeExpense_019e21fb-1cf6-7fda-99dd-8031baab02e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementFeeExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_ManagementFeeExpense_019e21fb-1cf6-7fda-99dd-8031baab02e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncentiveFeeExpenseIncomeBased_019e21fb-1cf6-75e5-aae7-4c1fdb79bb00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncentiveFeeExpenseIncomeBased"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_IncentiveFeeExpenseIncomeBased_019e21fb-1cf6-75e5-aae7-4c1fdb79bb00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IncentiveFeeExpenseCapitalGainBasedReversal_019e21fb-1cf6-7154-b91d-d15248c52c05" xlink:href="msif-20260630.xsd#msif_IncentiveFeeExpenseCapitalGainBasedReversal"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_msif_IncentiveFeeExpenseCapitalGainBasedReversal_019e21fb-1cf6-7154-b91d-d15248c52c05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019e21fb-1cf6-7086-bd64-de000e1832fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019e21fb-1cf6-7086-bd64-de000e1832fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdministrativeFeesExpense_019e21fb-1cf6-727b-b18a-e627bdcc15c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdministrativeFeesExpense"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_AdministrativeFeesExpense_019e21fb-1cf6-727b-b18a-e627bdcc15c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInvestmentExpense_019e21fb-1cf6-7556-abb9-2b55830952bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInvestmentExpense"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_InvestmentIncomeInvestmentExpense_019e21fb-1cf6-7556-abb9-2b55830952bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyContractualFeeWaived_019e21fb-1cf6-7012-a3d8-d131423d988e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyContractualFeeWaived"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_InvestmentCompanyContractualFeeWaived_019e21fb-1cf6-7012-a3d8-d131423d988e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_019e21fb-1cf6-7d7d-bd3b-43f05cd4216d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterestAndDebtExpenseAbstract_019e21fb-1cf6-7444-96be-393451dcb3d2" xlink:to="loc_us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_019e21fb-1cf6-7d7d-bd3b-43f05cd4216d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentIncome_019e21fb-1cf6-7886-83a5-1ee5da109e3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentIncome"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_NetInvestmentIncome_019e21fb-1cf6-7886-83a5-1ee5da109e3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyExciseTaxExpenseBenefit_019e21fb-1cf6-7f19-bda2-3e9e3839dbe7" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyExciseTaxExpenseBenefit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_msif_InvestmentCompanyExciseTaxExpenseBenefit_019e21fb-1cf6-7f19-bda2-3e9e3839dbe7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyFederalAndStateIncomeAndOtherTaxExpense_019e21fb-1cf6-747a-9c90-ab2cf2c5e56b" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyFederalAndStateIncomeAndOtherTaxExpense"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_msif_InvestmentCompanyFederalAndStateIncomeAndOtherTaxExpense_019e21fb-1cf6-747a-9c90-ab2cf2c5e56b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_019e21fb-1cf6-7f5f-9d18-4d7ed9faf9f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_InvestmentIncomeOperatingAfterExpenseAndTax_019e21fb-1cf6-7f5f-9d18-4d7ed9faf9f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_NetRealizedGainsLossesAbstract_019e21fb-1cf6-7dbf-a5d5-e8c9eca4ea63" xlink:href="msif-20260630.xsd#msif_NetRealizedGainsLossesAbstract"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_msif_NetRealizedGainsLossesAbstract_019e21fb-1cf6-7dbf-a5d5-e8c9eca4ea63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_019e21fb-1cf6-7eed-a3f9-a486168c7c97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_NetRealizedGainsLossesAbstract_019e21fb-1cf6-7dbf-a5d5-e8c9eca4ea63" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_019e21fb-1cf6-7eed-a3f9-a486168c7c97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedRecognizedUnrealizedAppreciationDepreciationNetAbstract_019e21fb-1cf6-797b-8ddd-ecb579315353" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedRecognizedUnrealizedAppreciationDepreciationNetAbstract"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_msif_InvestmentOwnedRecognizedUnrealizedAppreciationDepreciationNetAbstract_019e21fb-1cf6-797b-8ddd-ecb579315353" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_019e21fb-1cf6-7759-ac43-84e3b88d2b49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentOwnedRecognizedUnrealizedAppreciationDepreciationNetAbstract_019e21fb-1cf6-797b-8ddd-ecb579315353" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_019e21fb-1cf6-7759-ac43-84e3b88d2b49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_019e21fb-1cf6-7b8b-8624-1decb20694fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_019e21fb-1cf6-7b8b-8624-1decb20694fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e21fb-1cf6-7c45-b254-b15f85cf86a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_NetIncomeLoss_019e21fb-1cf6-7c45-b254-b15f85cf86a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyInvestmentIncomeLossFromOperationsPerSharePerBasicShare_019e21fb-1cf6-75a8-8a84-54c5fa3e085e" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyInvestmentIncomeLossFromOperationsPerSharePerBasicShare"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_msif_InvestmentCompanyInvestmentIncomeLossFromOperationsPerSharePerBasicShare_019e21fb-1cf6-75a8-8a84-54c5fa3e085e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyInvestmentIncomeLossFromOperationsPerSharePerDilutedShare_019e21fb-1cf6-7546-a8df-d78c13617338" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyInvestmentIncomeLossFromOperationsPerSharePerDilutedShare"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_msif_InvestmentCompanyInvestmentIncomeLossFromOperationsPerSharePerDilutedShare_019e21fb-1cf6-7546-a8df-d78c13617338" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e21fb-1cf6-781f-9007-74c7f279855b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e21fb-1cf6-781f-9007-74c7f279855b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e21fb-1cf6-7b99-a5e6-aa2503be6c68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-720e-b37d-ab5da8bc5e50" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e21fb-1cf6-7b99-a5e6-aa2503be6c68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedStatementsofChangesinNetAssets" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedStatementsofChangesinNetAssets"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedStatementsofChangesinNetAssets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_019e21fb-1cf6-75cb-9960-3a9146ceb792" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019e21fb-1cf6-75da-bcf2-620815b0600d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_019e21fb-1cf6-75cb-9960-3a9146ceb792" xlink:to="loc_us-gaap_StatementTable_019e21fb-1cf6-75da-bcf2-620815b0600d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019e21fb-1cf6-70ab-a352-48a3d2d2a90b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-75da-bcf2-620815b0600d" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019e21fb-1cf6-70ab-a352-48a3d2d2a90b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019e21fb-1cf6-7fc0-9c27-2b8189515ad0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019e21fb-1cf6-70ab-a352-48a3d2d2a90b" xlink:to="loc_us-gaap_EquityComponentDomain_019e21fb-1cf6-7fc0-9c27-2b8189515ad0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019e21fb-1cf6-7a2a-86a7-b1af9b5857e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_019e21fb-1cf6-7fc0-9c27-2b8189515ad0" xlink:to="loc_us-gaap_CommonStockMember_019e21fb-1cf6-7a2a-86a7-b1af9b5857e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019e21fb-1cf6-7d26-9b6f-3704786823ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_019e21fb-1cf6-7fc0-9c27-2b8189515ad0" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019e21fb-1cf6-7d26-9b6f-3704786823ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019e21fb-1cf6-7a01-bf6c-e079f767ff18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_019e21fb-1cf6-7fc0-9c27-2b8189515ad0" xlink:to="loc_us-gaap_RetainedEarningsMember_019e21fb-1cf6-7a01-bf6c-e079f767ff18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019e21fb-1cf6-7752-99f6-92895ca2abcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_019e21fb-1cf6-75da-bcf2-620815b0600d" xlink:to="loc_us-gaap_StatementLineItems_019e21fb-1cf6-7752-99f6-92895ca2abcf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_019e21fb-1cf6-7752-99f6-92895ca2abcf" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019e21fb-1cf6-721d-ac34-ba7efbf1b23d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019e21fb-1cf6-721d-ac34-ba7efbf1b23d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e21fb-1cf6-7586-b261-cafd0ab33e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockholdersEquity_019e21fb-1cf6-7586-b261-cafd0ab33e0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019e21fb-1cf6-7c58-a117-c5872bc8c28c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019e21fb-1cf6-7c58-a117-c5872bc8c28c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019e21fb-1cf6-71fb-b7c0-335b95f4ed19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019e21fb-1cf6-71fb-b7c0-335b95f4ed19" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_019e21fb-1cf6-7f3d-9337-ce7eac1d4e08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_019e21fb-1cf6-7f3d-9337-ce7eac1d4e08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_019e21fb-1cf6-7e64-a710-9118dc03f887" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_019e21fb-1cf6-7e64-a710-9118dc03f887" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_019e21fb-1cf6-799d-9d63-a9f5fabc2b13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_019e21fb-1cf6-799d-9d63-a9f5fabc2b13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_019e21fb-1cf6-7b66-ba7a-c851bf8b6bc7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_019e21fb-1cf6-7b66-ba7a-c851bf8b6bc7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e21fb-1cf6-7ec1-b8f9-8b4ccb86dbfb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_NetIncomeLoss_019e21fb-1cf6-7ec1-b8f9-8b4ccb86dbfb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStock_019e21fb-1cf6-7134-8b7b-22e21fef4be9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsCommonStock"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_DividendsCommonStock_019e21fb-1cf6-7134-8b7b-22e21fef4be9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019e21fb-1cf6-7252-ac04-c4a7b7a2d81a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019e21fb-1cf6-7252-ac04-c4a7b7a2d81a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e21fb-1cf6-7f57-8d93-a07d7c46d32d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019e21fb-1cf6-71e0-96ff-cd5c16ad4080" xlink:to="loc_us-gaap_StockholdersEquity_019e21fb-1cf6-7f57-8d93-a07d7c46d32d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedStatementsofCashFlows"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7afa-8976-3bbce0fe45bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7afa-8976-3bbce0fe45bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e21fb-1cf6-7c9c-bfea-d22762384b98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7afa-8976-3bbce0fe45bf" xlink:to="loc_us-gaap_NetIncomeLoss_019e21fb-1cf6-7c9c-bfea-d22762384b98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:href="msif-20260630.xsd#msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7afa-8976-3bbce0fe45bf" xlink:to="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PaymentsToInvestmentsInPortfolioCompanies_019e21fb-1cf6-7ac9-b03e-e04c79f045bf" xlink:href="msif-20260630.xsd#msif_PaymentsToInvestmentsInPortfolioCompanies"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_msif_PaymentsToInvestmentsInPortfolioCompanies_019e21fb-1cf6-7ac9-b03e-e04c79f045bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ProceedsFromSalesAndRepaymentsOfDebtInvestmentsInPortfolioCompanies_019e21fb-1cf6-771a-91b3-06f272ab9596" xlink:href="msif-20260630.xsd#msif_ProceedsFromSalesAndRepaymentsOfDebtInvestmentsInPortfolioCompanies"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_msif_ProceedsFromSalesAndRepaymentsOfDebtInvestmentsInPortfolioCompanies_019e21fb-1cf6-771a-91b3-06f272ab9596" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ProceedsFromSalesAndReturnOfCapitalOfEquityInvestmentsInPortfolioCompanies_019e21fb-1cf6-79ce-90a4-61a62e8604cd" xlink:href="msif-20260630.xsd#msif_ProceedsFromSalesAndReturnOfCapitalOfEquityInvestmentsInPortfolioCompanies"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_msif_ProceedsFromSalesAndReturnOfCapitalOfEquityInvestmentsInPortfolioCompanies_019e21fb-1cf6-79ce-90a4-61a62e8604cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_019e21fb-1cf6-7622-a946-c4ee912a7da7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_019e21fb-1cf6-7622-a946-c4ee912a7da7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_019e21fb-1cf6-784f-9fd5-af32d93d4fb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_019e21fb-1cf6-784f-9fd5-af32d93d4fb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AccretionOfUnearnedIncome_019e21fb-1cf6-7d1e-abd3-e5d1f297b12d" xlink:href="msif-20260630.xsd#msif_AccretionOfUnearnedIncome"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_msif_AccretionOfUnearnedIncome_019e21fb-1cf6-7d1e-abd3-e5d1f297b12d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PaymentInKindInterest_019e21fb-1cf6-7f63-9016-39f863d8d77c" xlink:href="msif-20260630.xsd#msif_PaymentInKindInterest"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_msif_PaymentInKindInterest_019e21fb-1cf6-7f63-9016-39f863d8d77c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CumulativeDividendsNonCash_019e21fb-1cf6-7a80-ab26-87bd80639b94" xlink:href="msif-20260630.xsd#msif_CumulativeDividendsNonCash"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_msif_CumulativeDividendsNonCash_019e21fb-1cf6-7a80-ab26-87bd80639b94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_019e21fb-1cf6-79fb-ab22-7e53d0dbabca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_019e21fb-1cf6-79fb-ab22-7e53d0dbabca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e21fb-1cf6-7765-ade7-8b34a6abb528" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e21fb-1cf6-7765-ade7-8b34a6abb528" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AdjustmentsToReconcileNetAssetsFromOperationsToCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7473-a052-bfc6f6e049f0" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IncreaseDecreaseInInterestAndDividendReceivable_019e21fb-1cf6-7938-b827-e19ea7bcc336" xlink:href="msif-20260630.xsd#msif_IncreaseDecreaseInInterestAndDividendReceivable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:to="loc_msif_IncreaseDecreaseInInterestAndDividendReceivable_019e21fb-1cf6-7938-b827-e19ea7bcc336" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e21fb-1cf6-73bf-86be-31a6365eee74" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e21fb-1cf6-73bf-86be-31a6365eee74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities_019e21fb-1cf6-7cf5-bab3-fd02bf459aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities_019e21fb-1cf6-7cf5-bab3-fd02bf459aaa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_019e21fb-1cf6-707f-b3c7-2b626c0e1ce8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_019e21fb-1cf6-707f-b3c7-2b626c0e1ce8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInManagementAndIncentiveFeesPayable_019e21fb-1cf6-7ebf-b25e-5e6aaaaa2874" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInManagementAndIncentiveFeesPayable"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:to="loc_us-gaap_IncreaseDecreaseInManagementAndIncentiveFeesPayable_019e21fb-1cf6-7ebf-b25e-5e6aaaaa2874" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IncreaseDecreaseInIncentiveFeeAccrualCapitalGainBased_019f862a-e5a9-7b5f-992e-1df8df71f8e8" xlink:href="msif-20260630.xsd#msif_IncreaseDecreaseInIncentiveFeeAccrualCapitalGainBased"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019e21fb-1cf6-7707-9459-7a51be3662f6" xlink:to="loc_msif_IncreaseDecreaseInIncentiveFeeAccrualCapitalGainBased_019f862a-e5a9-7b5f-992e-1df8df71f8e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e21fb-1cf6-79c5-8706-9ccf64f3d388" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019e21fb-1cf6-7afa-8976-3bbce0fe45bf" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e21fb-1cf6-79c5-8706-9ccf64f3d388" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_019e21fb-1cf6-7cd1-97ac-7e264ad1ea61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_ProceedsFromIssuanceInitialPublicOffering_019e21fb-1cf6-7cd1-97ac-7e264ad1ea61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e21fb-1cf6-7dc5-9f79-ca2e2e42b4f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019e21fb-1cf6-7dc5-9f79-ca2e2e42b4f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfOrdinaryDividends_019e21fb-1cf6-7e4a-98d4-dd02d77fc913" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfOrdinaryDividends"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_PaymentsOfOrdinaryDividends_019e21fb-1cf6-7e4a-98d4-dd02d77fc913" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_019e21fb-1cf6-7d72-a5a0-93e7f378a211" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_019e21fb-1cf6-7d72-a5a0-93e7f378a211" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_019e21fb-1cf6-7601-87de-e910b94e7d04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_019e21fb-1cf6-7601-87de-e910b94e7d04" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e21fb-1cf6-71cc-9671-f7861a3d7ec8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_019e21fb-1cf6-71cc-9671-f7861a3d7ec8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_019e21fb-1cf6-7e27-abeb-e56554566887" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_019e21fb-1cf6-7e27-abeb-e56554566887" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e21fb-1cf6-7cd1-845c-3742763c73bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019e21fb-1cf6-7876-8236-f91f06813181" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e21fb-1cf6-7cd1-845c-3742763c73bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e21fb-1cf6-78c5-bd11-4165d41a0a06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e21fb-1cf6-78c5-bd11-4165d41a0a06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e21fb-1cf6-7d72-9903-d1346766ce22" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e21fb-1cf6-7d72-9903-d1346766ce22" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e21fb-1cf6-729d-b16d-40e2a7397921" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019e21fb-1cf6-729d-b16d-40e2a7397921" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_019e21fb-1cf6-7aa4-a607-9f868928378d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_019e21fb-1cf6-7aa4-a607-9f868928378d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_019e21fb-1cf6-7efe-aba2-709ba63ebb00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestPaidNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_019e21fb-1cf6-7aa4-a607-9f868928378d" xlink:to="loc_us-gaap_InterestPaidNet_019e21fb-1cf6-7efe-aba2-709ba63ebb00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaid_019e21fb-1cf6-7d0e-aabb-394d2c8d2613" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxesPaid"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_019e21fb-1cf6-7aa4-a607-9f868928378d" xlink:to="loc_us-gaap_IncomeTaxesPaid_019e21fb-1cf6-7d0e-aabb-394d2c8d2613" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_019e21fb-1cf6-7385-b0df-6d90b0ef5f73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_019e21fb-1cf6-73f9-b5ae-2b46e8b702bb" xlink:to="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_019e21fb-1cf6-7385-b0df-6d90b0ef5f73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssued1_019e21fb-1cf6-7b82-a1ab-5bdb4fcc6114" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssued1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_019e21fb-1cf6-7385-b0df-6d90b0ef5f73" xlink:to="loc_us-gaap_StockIssued1_019e21fb-1cf6-7b82-a1ab-5bdb4fcc6114" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestments" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedScheduleofInvestments"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestments" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsAbstract_019e21fb-1cf6-7e0e-9fb5-35431b81785a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1cf6-756c-9aa4-3794643ef3d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsAbstract_019e21fb-1cf6-7e0e-9fb5-35431b81785a" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1cf6-756c-9aa4-3794643ef3d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1cf6-7299-8aa9-aa58dad8cd5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIdentifierAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1cf6-756c-9aa4-3794643ef3d7" xlink:to="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1cf6-7299-8aa9-aa58dad8cd5c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerNameAxis_019e21fb-1cf6-7526-9af8-20080dbab7ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerNameAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1cf6-756c-9aa4-3794643ef3d7" xlink:to="loc_us-gaap_InvestmentIssuerNameAxis_019e21fb-1cf6-7526-9af8-20080dbab7ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameAxis_019e21fb-1cf6-7526-9af8-20080dbab7ce" xlink:to="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BDBHoldingsLLCMember_019e21fb-1cf6-7f2b-a38f-bf3aecfd87dc" xlink:href="msif-20260630.xsd#msif_BDBHoldingsLLCMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BDBHoldingsLLCMember_019e21fb-1cf6-7f2b-a38f-bf3aecfd87dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_GRTRubberTechnologiesLLCMember_019e21fb-1cf6-758d-ada3-dbf4e0168f8b" xlink:href="msif-20260630.xsd#msif_GRTRubberTechnologiesLLCMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_GRTRubberTechnologiesLLCMember_019e21fb-1cf6-758d-ada3-dbf4e0168f8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_VolusionLLCMember_019e21fb-1cf6-7f36-9304-2b5cb236334e" xlink:href="msif-20260630.xsd#msif_VolusionLLCMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_VolusionLLCMember_019e21fb-1cf6-7f36-9304-2b5cb236334e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AmericanNutsLLCMember_019e21fb-1cf6-72db-9297-b58acdae0cae" xlink:href="msif-20260630.xsd#msif_AmericanNutsLLCMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AmericanNutsLLCMember_019e21fb-1cf6-72db-9297-b58acdae0cae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AnalyticalSystemsKecoHoldingsLLCMember_019e21fb-1cf6-7d76-8dea-837f07c359fc" xlink:href="msif-20260630.xsd#msif_AnalyticalSystemsKecoHoldingsLLCMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AnalyticalSystemsKecoHoldingsLLCMember_019e21fb-1cf6-7d76-8dea-837f07c359fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BatjerTopCoLLCMember_019e21fb-1cf6-7c23-8251-799fe7bcfa83" xlink:href="msif-20260630.xsd#msif_BatjerTopCoLLCMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BatjerTopCoLLCMember_019e21fb-1cf6-7c23-8251-799fe7bcfa83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BettercloudIncMember_019e21fb-1cf6-79a2-abb7-2acc330143fa" xlink:href="msif-20260630.xsd#msif_BettercloudIncMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BettercloudIncMember_019e21fb-1cf6-79a2-abb7-2acc330143fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BrewerCraneHoldingsLLCMember_019e21fb-1cf6-705f-8315-e450c6c708a6" xlink:href="msif-20260630.xsd#msif_BrewerCraneHoldingsLLCMember"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BrewerCraneHoldingsLLCMember_019e21fb-1cf6-705f-8315-e450c6c708a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CentreTechnologiesHoldingsLLCMember_019e21fb-1cf6-7a78-a2e2-87c140bc777e" xlink:href="msif-20260630.xsd#msif_CentreTechnologiesHoldingsLLCMember"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CentreTechnologiesHoldingsLLCMember_019e21fb-1cf6-7a78-a2e2-87c140bc777e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ChamberlinHoldingLLCMember_019e21fb-1cf6-7368-add9-3a0e56c7c9b3" xlink:href="msif-20260630.xsd#msif_ChamberlinHoldingLLCMember"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ChamberlinHoldingLLCMember_019e21fb-1cf6-7368-add9-3a0e56c7c9b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CladRexSteelLLCMember_019e21fb-1cf6-7da0-93fb-dae27687d857" xlink:href="msif-20260630.xsd#msif_CladRexSteelLLCMember"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CladRexSteelLLCMember_019e21fb-1cf6-7da0-93fb-dae27687d857" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CodyPoolsIncMember_019e21fb-1cf6-76ac-a91b-ae2b67aa9f23" xlink:href="msif-20260630.xsd#msif_CodyPoolsIncMember"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CodyPoolsIncMember_019e21fb-1cf6-76ac-a91b-ae2b67aa9f23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ColonialElectricCompanyLLCMember_019e21fb-1cf6-70ee-86f2-cf7395a2a865" xlink:href="msif-20260630.xsd#msif_ColonialElectricCompanyLLCMember"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ColonialElectricCompanyLLCMember_019e21fb-1cf6-70ee-86f2-cf7395a2a865" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CompassSystemsSalesLLCMember_019e21fb-1cf6-7b40-b539-b4c91f650855" xlink:href="msif-20260630.xsd#msif_CompassSystemsSalesLLCMember"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CompassSystemsSalesLLCMember_019e21fb-1cf6-7b40-b539-b4c91f650855" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DatacomLLCMember_019e21fb-1cf6-70a1-96b4-961fbb55f076" xlink:href="msif-20260630.xsd#msif_DatacomLLCMember"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_DatacomLLCMember_019e21fb-1cf6-70a1-96b4-961fbb55f076" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DigitalProductsHoldingsLLCMember_019e21fb-1cf6-7055-9c6e-1ff09f605ec6" xlink:href="msif-20260630.xsd#msif_DigitalProductsHoldingsLLCMember"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_DigitalProductsHoldingsLLCMember_019e21fb-1cf6-7055-9c6e-1ff09f605ec6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DirectMarketingSolutionsIncMember_019e21fb-1cf6-7ab2-910d-0dbd2137f4bf" xlink:href="msif-20260630.xsd#msif_DirectMarketingSolutionsIncMember"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_DirectMarketingSolutionsIncMember_019e21fb-1cf6-7ab2-910d-0dbd2137f4bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DMAIndustriesLLCMember_019e21fb-1cf6-766f-aa21-0d65d2d23d4b" xlink:href="msif-20260630.xsd#msif_DMAIndustriesLLCMember"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_DMAIndustriesLLCMember_019e21fb-1cf6-766f-aa21-0d65d2d23d4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_FlameKingHoldingsLLCMember_019e21fb-1cf6-7180-9f3b-e1aa5ab1970e" xlink:href="msif-20260630.xsd#msif_FlameKingHoldingsLLCMember"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_FlameKingHoldingsLLCMember_019e21fb-1cf6-7180-9f3b-e1aa5ab1970e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_GamberJohnsonHoldingsLLCMember_019e21fb-1cf6-783d-baff-415756970df3" xlink:href="msif-20260630.xsd#msif_GamberJohnsonHoldingsLLCMember"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_GamberJohnsonHoldingsLLCMember_019e21fb-1cf6-783d-baff-415756970df3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_GFGGroupLLCMember_019e21fb-1cf6-7f89-9a96-d7b683c0028e" xlink:href="msif-20260630.xsd#msif_GFGGroupLLCMember"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_GFGGroupLLCMember_019e21fb-1cf6-7f89-9a96-d7b683c0028e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IGInvestorLLCMember_019e21fb-1cf6-77af-9763-cd4179deb115" xlink:href="msif-20260630.xsd#msif_IGInvestorLLCMember"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_IGInvestorLLCMember_019e21fb-1cf6-77af-9763-cd4179deb115" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IntegralEnergyServicesMember_019e21fb-1cf6-7f71-a17d-d62c619cbc38" xlink:href="msif-20260630.xsd#msif_IntegralEnergyServicesMember"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_IntegralEnergyServicesMember_019e21fb-1cf6-7f71-a17d-d62c619cbc38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_KickhaeferManufacturingCompanyLLCMember_019e21fb-1cf6-7bac-8d3e-3f9880f923d7" xlink:href="msif-20260630.xsd#msif_KickhaeferManufacturingCompanyLLCMember"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_KickhaeferManufacturingCompanyLLCMember_019e21fb-1cf6-7bac-8d3e-3f9880f923d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_KMSLLCMember_019e21fb-1cf6-7cd4-8cfb-07dd7345c0ec" xlink:href="msif-20260630.xsd#msif_KMSLLCMember"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_KMSLLCMember_019e21fb-1cf6-7cd4-8cfb-07dd7345c0ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MillsFleetFarmGroupLLCMember_019e21fb-1cf6-7059-b800-06273ad6d58c" xlink:href="msif-20260630.xsd#msif_MillsFleetFarmGroupLLCMember"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MillsFleetFarmGroupLLCMember_019e21fb-1cf6-7059-b800-06273ad6d58c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_NelloIndustriesInvestcoLLCMember_019e21fb-1cf6-76c8-9332-f0a0ac74c830" xlink:href="msif-20260630.xsd#msif_NelloIndustriesInvestcoLLCMember"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_NelloIndustriesInvestcoLLCMember_019e21fb-1cf6-76c8-9332-f0a0ac74c830" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_NuStepLLCMember_019e21fb-1cf6-7106-90f6-62358ec0d478" xlink:href="msif-20260630.xsd#msif_NuStepLLCMember"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_NuStepLLCMember_019e21fb-1cf6-7106-90f6-62358ec0d478" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_OrttechHoldingsLLCMember_019e21fb-1cf6-7980-a60a-9a8e7c492c88" xlink:href="msif-20260630.xsd#msif_OrttechHoldingsLLCMember"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_OrttechHoldingsLLCMember_019e21fb-1cf6-7980-a60a-9a8e7c492c88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PinnacleTopCoLLCMember_019e21fb-1cf6-708a-a5ad-2cf7f59bdad4" xlink:href="msif-20260630.xsd#msif_PinnacleTopCoLLCMember"/>
    <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_PinnacleTopCoLLCMember_019e21fb-1cf6-708a-a5ad-2cf7f59bdad4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RAOutdoorsLLCMember_019e21fb-1cf6-7461-8bd4-7245cfabfbfc" xlink:href="msif-20260630.xsd#msif_RAOutdoorsLLCMember"/>
    <link:presentationArc order="31" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_RAOutdoorsLLCMember_019e21fb-1cf6-7461-8bd4-7245cfabfbfc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RobbinsBrosJewelryIncMember_019e21fb-1cf6-7cae-9024-2f5a2c4cc3b8" xlink:href="msif-20260630.xsd#msif_RobbinsBrosJewelryIncMember"/>
    <link:presentationArc order="32" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_RobbinsBrosJewelryIncMember_019e21fb-1cf6-7cae-9024-2f5a2c4cc3b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SIEastLLCMember_019e21fb-1cf6-7887-bbfa-315620a6c463" xlink:href="msif-20260630.xsd#msif_SIEastLLCMember"/>
    <link:presentationArc order="33" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_SIEastLLCMember_019e21fb-1cf6-7887-bbfa-315620a6c463" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_StudentResourceCenterLLCMember_019e21fb-1cf6-71cf-9917-f89297ce54b5" xlink:href="msif-20260630.xsd#msif_StudentResourceCenterLLCMember"/>
    <link:presentationArc order="34" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_StudentResourceCenterLLCMember_019e21fb-1cf6-71cf-9917-f89297ce54b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_TedderIndustriesLLCMember_019e21fb-1cf6-7a27-8f79-e40080556269" xlink:href="msif-20260630.xsd#msif_TedderIndustriesLLCMember"/>
    <link:presentationArc order="35" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_TedderIndustriesLLCMember_019e21fb-1cf6-7a27-8f79-e40080556269" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_TrantechRadiatorTopcoLLCMember_019e21fb-1cf6-7770-9af0-507821fa6036" xlink:href="msif-20260630.xsd#msif_TrantechRadiatorTopcoLLCMember"/>
    <link:presentationArc order="36" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_TrantechRadiatorTopcoLLCMember_019e21fb-1cf6-7770-9af0-507821fa6036" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_UrgentDSOLLCMember_019e21fb-1cf6-7541-9b5e-c6b055904f45" xlink:href="msif-20260630.xsd#msif_UrgentDSOLLCMember"/>
    <link:presentationArc order="37" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_UrgentDSOLLCMember_019e21fb-1cf6-7541-9b5e-c6b055904f45" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_VictoryEnergyOperationsLLCMember_019e21fb-1cf6-7326-b868-8099236a1bf0" xlink:href="msif-20260630.xsd#msif_VictoryEnergyOperationsLLCMember"/>
    <link:presentationArc order="38" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_VictoryEnergyOperationsLLCMember_019e21fb-1cf6-7326-b868-8099236a1bf0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_VVSHoldcoLLCMember_019e21fb-1cf6-73b8-8859-25b3c60eea65" xlink:href="msif-20260630.xsd#msif_VVSHoldcoLLCMember"/>
    <link:presentationArc order="39" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_VVSHoldcoLLCMember_019e21fb-1cf6-73b8-8859-25b3c60eea65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AACHoldingsIncMember_019e21fb-1cf6-77e5-9614-0af4d0813ffa" xlink:href="msif-20260630.xsd#msif_AACHoldingsIncMember"/>
    <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AACHoldingsIncMember_019e21fb-1cf6-77e5-9614-0af4d0813ffa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdamsPublishingGroupLLCMember_019e21fb-1cf6-7f82-b00e-40a80bfd9ade" xlink:href="msif-20260630.xsd#msif_AdamsPublishingGroupLLCMember"/>
    <link:presentationArc order="41" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AdamsPublishingGroupLLCMember_019e21fb-1cf6-7f82-b00e-40a80bfd9ade" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AGSAmericanGlassServicesAcquisitionLLCMember_019e21fb-1cf6-7942-a8a2-3ebf3990be76" xlink:href="msif-20260630.xsd#msif_AGSAmericanGlassServicesAcquisitionLLCMember"/>
    <link:presentationArc order="42" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AGSAmericanGlassServicesAcquisitionLLCMember_019e21fb-1cf6-7942-a8a2-3ebf3990be76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AiroPurchaserInc.Member_019e21fb-1cf6-778f-b6f1-44e695e55bc8" xlink:href="msif-20260630.xsd#msif_AiroPurchaserInc.Member"/>
    <link:presentationArc order="43" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AiroPurchaserInc.Member_019e21fb-1cf6-778f-b6f1-44e695e55bc8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AmericanHealthStaffingGroupIncMember_019e21fb-1cf6-74d5-984a-9a39fabc069c" xlink:href="msif-20260630.xsd#msif_AmericanHealthStaffingGroupIncMember"/>
    <link:presentationArc order="44" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AmericanHealthStaffingGroupIncMember_019e21fb-1cf6-74d5-984a-9a39fabc069c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ArborWorksLLCMember_019e21fb-1cf6-7921-95a3-a985bca9505c" xlink:href="msif-20260630.xsd#msif_ArborWorksLLCMember"/>
    <link:presentationArc order="45" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ArborWorksLLCMember_019e21fb-1cf6-7921-95a3-a985bca9505c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ATSOperatingLLCMember_019e21fb-1cf6-7e5e-b92d-f6877b30043d" xlink:href="msif-20260630.xsd#msif_ATSOperatingLLCMember"/>
    <link:presentationArc order="46" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ATSOperatingLLCMember_019e21fb-1cf6-7e5e-b92d-f6877b30043d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AuriaSpaceLLCMember_019e21fb-1cf6-7205-b9a8-645fe06b4482" xlink:href="msif-20260630.xsd#msif_AuriaSpaceLLCMember"/>
    <link:presentationArc order="47" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AuriaSpaceLLCMember_019e21fb-1cf6-7205-b9a8-645fe06b4482" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AVEXAviationHoldingsLLCMember_019e21fb-1cf6-7d3a-a5dd-d7ae3aacf6bb" xlink:href="msif-20260630.xsd#msif_AVEXAviationHoldingsLLCMember"/>
    <link:presentationArc order="48" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_AVEXAviationHoldingsLLCMember_019e21fb-1cf6-7d3a-a5dd-d7ae3aacf6bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BehaviorDevelopmentGroupHoldingsMember_019e21fb-1cf6-72ea-bc93-60013ec3b979" xlink:href="msif-20260630.xsd#msif_BehaviorDevelopmentGroupHoldingsMember"/>
    <link:presentationArc order="49" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BehaviorDevelopmentGroupHoldingsMember_019e21fb-1cf6-72ea-bc93-60013ec3b979" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BerryAviationIncMember_019e21fb-1cf6-7c7c-9ab5-56ce194da7d7" xlink:href="msif-20260630.xsd#msif_BerryAviationIncMember"/>
    <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BerryAviationIncMember_019e21fb-1cf6-7c7c-9ab5-56ce194da7d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BluestemBrandsIncMember_019e21fb-1cf6-7c78-8a16-c0f1d4b3978e" xlink:href="msif-20260630.xsd#msif_BluestemBrandsIncMember"/>
    <link:presentationArc order="51" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BluestemBrandsIncMember_019e21fb-1cf6-7c78-8a16-c0f1d4b3978e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BoccellaPrecastProductsLLCMember_019e21fb-1cf6-771d-b3b7-640fd472ce4e" xlink:href="msif-20260630.xsd#msif_BoccellaPrecastProductsLLCMember"/>
    <link:presentationArc order="52" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BoccellaPrecastProductsLLCMember_019e21fb-1cf6-771d-b3b7-640fd472ce4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BOFCorporationMember_019e21fb-1cf6-70e8-af74-619d05f0986f" xlink:href="msif-20260630.xsd#msif_BOFCorporationMember"/>
    <link:presentationArc order="53" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BOFCorporationMember_019e21fb-1cf6-70e8-af74-619d05f0986f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BondBrandLoyaltyULCMember_019e21fb-1cf6-7635-a3db-8ec7372f9908" xlink:href="msif-20260630.xsd#msif_BondBrandLoyaltyULCMember"/>
    <link:presentationArc order="54" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BondBrandLoyaltyULCMember_019e21fb-1cf6-7635-a3db-8ec7372f9908" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BPLoenbroHoldingsInc.Member_019e21fb-1cf6-79f8-934e-b589d12f5ff0" xlink:href="msif-20260630.xsd#msif_BPLoenbroHoldingsInc.Member"/>
    <link:presentationArc order="55" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BPLoenbroHoldingsInc.Member_019e21fb-1cf6-79f8-934e-b589d12f5ff0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BrightwoodCapitalFundInvestmentsMember_019e21fb-1cf6-7934-8f4b-d16fb647c8cc" xlink:href="msif-20260630.xsd#msif_BrightwoodCapitalFundInvestmentsMember"/>
    <link:presentationArc order="56" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BrightwoodCapitalFundInvestmentsMember_019e21fb-1cf6-7934-8f4b-d16fb647c8cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BucaCLLCMember_019e21fb-1cf6-72a3-851b-6d76aad1290a" xlink:href="msif-20260630.xsd#msif_BucaCLLCMember"/>
    <link:presentationArc order="57" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_BucaCLLCMember_019e21fb-1cf6-72a3-851b-6d76aad1290a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CareerTeamHoldingsLLCMember_019e21fb-1cf6-70e6-b856-965d670b5605" xlink:href="msif-20260630.xsd#msif_CareerTeamHoldingsLLCMember"/>
    <link:presentationArc order="58" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CareerTeamHoldingsLLCMember_019e21fb-1cf6-70e6-b856-965d670b5605" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CenterPeakHoldingsLLCMember_019e21fb-1cf6-7773-b62c-80cdfc7aa968" xlink:href="msif-20260630.xsd#msif_CenterPeakHoldingsLLCMember"/>
    <link:presentationArc order="59" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CenterPeakHoldingsLLCMember_019e21fb-1cf6-7773-b62c-80cdfc7aa968" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ChannelPartnersIntermediatecoLLCMember_019e21fb-1cf6-7274-a1f7-0d298e732ce3" xlink:href="msif-20260630.xsd#msif_ChannelPartnersIntermediatecoLLCMember"/>
    <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ChannelPartnersIntermediatecoLLCMember_019e21fb-1cf6-7274-a1f7-0d298e732ce3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ComputerDataSourceLLCMember_019e21fb-1cf6-7a74-b5a7-1e83cc3db3f2" xlink:href="msif-20260630.xsd#msif_ComputerDataSourceLLCMember"/>
    <link:presentationArc order="61" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ComputerDataSourceLLCMember_019e21fb-1cf6-7a74-b5a7-1e83cc3db3f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ConnectTelecommunicationsSolutionsHoldingsInc.Member_019e21fb-1cf6-702e-b4ab-4722887a20f6" xlink:href="msif-20260630.xsd#msif_ConnectTelecommunicationsSolutionsHoldingsInc.Member"/>
    <link:presentationArc order="62" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ConnectTelecommunicationsSolutionsHoldingsInc.Member_019e21fb-1cf6-702e-b4ab-4722887a20f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CoreTransformersMember_019e21fb-1cf6-7c1b-bd3f-caf77361f29f" xlink:href="msif-20260630.xsd#msif_CoreTransformersMember"/>
    <link:presentationArc order="63" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CoreTransformersMember_019e21fb-1cf6-7c1b-bd3f-caf77361f29f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CoregisticsBuyerLLCMember_019e21fb-1cf6-732a-bae6-12eca238aabd" xlink:href="msif-20260630.xsd#msif_CoregisticsBuyerLLCMember"/>
    <link:presentationArc order="64" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CoregisticsBuyerLLCMember_019e21fb-1cf6-732a-bae6-12eca238aabd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CoreStackInc.Member_019e21fb-1cf6-7b9e-825d-76bb807d5709" xlink:href="msif-20260630.xsd#msif_CoreStackInc.Member"/>
    <link:presentationArc order="65" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CoreStackInc.Member_019e21fb-1cf6-7b9e-825d-76bb807d5709" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CQFluencyLLCMember_019e21fb-1cf6-7166-80d0-998a7f3ecec3" xlink:href="msif-20260630.xsd#msif_CQFluencyLLCMember"/>
    <link:presentationArc order="66" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CQFluencyLLCMember_019e21fb-1cf6-7166-80d0-998a7f3ecec3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CRCEvansUSABidcoInc.Member_019e21fb-1cf6-7c9d-9535-a34df27aadd6" xlink:href="msif-20260630.xsd#msif_CRCEvansUSABidcoInc.Member"/>
    <link:presentationArc order="67" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CRCEvansUSABidcoInc.Member_019e21fb-1cf6-7c9d-9535-a34df27aadd6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CreativeFoamCorporationMember_019e21fb-1cf6-7ab0-8c9b-d1b676af39b1" xlink:href="msif-20260630.xsd#msif_CreativeFoamCorporationMember"/>
    <link:presentationArc order="68" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_CreativeFoamCorporationMember_019e21fb-1cf6-7ab0-8c9b-d1b676af39b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DTEEnterprisesLLCMember_019e21fb-1cf6-7873-8c51-41f5cfd1681d" xlink:href="msif-20260630.xsd#msif_DTEEnterprisesLLCMember"/>
    <link:presentationArc order="69" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_DTEEnterprisesLLCMember_019e21fb-1cf6-7873-8c51-41f5cfd1681d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DynamicCommunitiesLLCMember_019e21fb-1cf6-7852-854d-e2a73dc3c636" xlink:href="msif-20260630.xsd#msif_DynamicCommunitiesLLCMember"/>
    <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_DynamicCommunitiesLLCMember_019e21fb-1cf6-7852-854d-e2a73dc3c636" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ElectroTechnicalIndustriesLLCMember_019e21fb-1cf6-72f1-b312-540e32317af6" xlink:href="msif-20260630.xsd#msif_ElectroTechnicalIndustriesLLCMember"/>
    <link:presentationArc order="71" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ElectroTechnicalIndustriesLLCMember_019e21fb-1cf6-72f1-b312-540e32317af6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ElginAcquireCoLLCMember_019e21fb-1cf6-73d6-9035-51771cd86753" xlink:href="msif-20260630.xsd#msif_ElginAcquireCoLLCMember"/>
    <link:presentationArc order="72" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ElginAcquireCoLLCMember_019e21fb-1cf6-73d6-9035-51771cd86753" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_EscalentIncMember_019e21fb-1cf6-75e5-93bd-adc3c2eef996" xlink:href="msif-20260630.xsd#msif_EscalentIncMember"/>
    <link:presentationArc order="73" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_EscalentIncMember_019e21fb-1cf6-75e5-93bd-adc3c2eef996" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_EventHoldcoLLCMember_019e21fb-1cf6-7ec8-b527-629d5a7f9cb1" xlink:href="msif-20260630.xsd#msif_EventHoldcoLLCMember"/>
    <link:presentationArc order="74" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_EventHoldcoLLCMember_019e21fb-1cf6-7ec8-b527-629d5a7f9cb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_FCCIntermediateHoldcoLLCMember_019e21fb-1cf6-73af-8d56-645851cae15e" xlink:href="msif-20260630.xsd#msif_FCCIntermediateHoldcoLLCMember"/>
    <link:presentationArc order="75" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_FCCIntermediateHoldcoLLCMember_019e21fb-1cf6-73af-8d56-645851cae15e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_GarylineLLCMember_019e21fb-1cf6-756d-b630-32d1049063db" xlink:href="msif-20260630.xsd#msif_GarylineLLCMember"/>
    <link:presentationArc order="76" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_GarylineLLCMember_019e21fb-1cf6-756d-b630-32d1049063db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_GradeEightCorp.Member_019e21fb-1cf6-77ef-a928-5d13d902994f" xlink:href="msif-20260630.xsd#msif_GradeEightCorp.Member"/>
    <link:presentationArc order="77" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_GradeEightCorp.Member_019e21fb-1cf6-77ef-a928-5d13d902994f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_HawkRidgeSystemsLLCMember_019e21fb-1cf6-79d9-a931-48ee46ddfd17" xlink:href="msif-20260630.xsd#msif_HawkRidgeSystemsLLCMember"/>
    <link:presentationArc order="78" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_HawkRidgeSystemsLLCMember_019e21fb-1cf6-79d9-a931-48ee46ddfd17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_HDCHWIntermediateHoldingsMember_019e21fb-1cf6-7b37-9ae0-1f900723440d" xlink:href="msif-20260630.xsd#msif_HDCHWIntermediateHoldingsMember"/>
    <link:presentationArc order="79" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_HDCHWIntermediateHoldingsMember_019e21fb-1cf6-7b37-9ae0-1f900723440d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_HornblowerSubLLCMember_019e21fb-1cf6-7652-aa91-155e887c9751" xlink:href="msif-20260630.xsd#msif_HornblowerSubLLCMember"/>
    <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_HornblowerSubLLCMember_019e21fb-1cf6-7652-aa91-155e887c9751" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_HorwitzHoldingsLLCMember_019fa3d7-0be0-7f9c-8fff-de7c91a31254" xlink:href="msif-20260630.xsd#msif_HorwitzHoldingsLLCMember"/>
    <link:presentationArc order="81" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_HorwitzHoldingsLLCMember_019fa3d7-0be0-7f9c-8fff-de7c91a31254" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IGParentCorporationMember_019e21fb-1cf6-754d-9cd9-535b95186b70" xlink:href="msif-20260630.xsd#msif_IGParentCorporationMember"/>
    <link:presentationArc order="82" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_IGParentCorporationMember_019e21fb-1cf6-754d-9cd9-535b95186b70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IgniteVisibilityLLCMember_019e21fb-1cf6-77f8-adfa-95d2ec62114a" xlink:href="msif-20260630.xsd#msif_IgniteVisibilityLLCMember"/>
    <link:presentationArc order="83" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_IgniteVisibilityLLCMember_019e21fb-1cf6-77f8-adfa-95d2ec62114a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ImplusFootcareLLCMember_019e21fb-1cf6-7c21-a4fa-2c290d9af33f" xlink:href="msif-20260630.xsd#msif_ImplusFootcareLLCMember"/>
    <link:presentationArc order="84" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ImplusFootcareLLCMember_019e21fb-1cf6-7c21-a4fa-2c290d9af33f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InfinityX1HoldingsLLCMember_019e21fb-1cf6-7439-9633-ec41da4acc19" xlink:href="msif-20260630.xsd#msif_InfinityX1HoldingsLLCMember"/>
    <link:presentationArc order="85" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_InfinityX1HoldingsLLCMember_019e21fb-1cf6-7439-9633-ec41da4acc19" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InsightBorrowerCorporationMember_019e21fb-1cf6-7cbb-ab95-76bc920f9c1f" xlink:href="msif-20260630.xsd#msif_InsightBorrowerCorporationMember"/>
    <link:presentationArc order="86" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_InsightBorrowerCorporationMember_019e21fb-1cf6-7cbb-ab95-76bc920f9c1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InspireAestheticsManagementLLCMember_019e21fb-1cf6-792a-a8f3-cf9acad6435f" xlink:href="msif-20260630.xsd#msif_InspireAestheticsManagementLLCMember"/>
    <link:presentationArc order="87" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_InspireAestheticsManagementLLCMember_019e21fb-1cf6-792a-a8f3-cf9acad6435f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InterfaceSecuritySystemsLLCMember_019e21fb-1cf6-7658-9f6c-bc982cb839a9" xlink:href="msif-20260630.xsd#msif_InterfaceSecuritySystemsLLCMember"/>
    <link:presentationArc order="88" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_InterfaceSecuritySystemsLLCMember_019e21fb-1cf6-7658-9f6c-bc982cb839a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvincibleBoatCompanyLLCMember_019e21fb-1cf6-787f-92b5-18ce8387f2ff" xlink:href="msif-20260630.xsd#msif_InvincibleBoatCompanyLLCMember"/>
    <link:presentationArc order="89" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_InvincibleBoatCompanyLLCMember_019e21fb-1cf6-787f-92b5-18ce8387f2ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IronMainInvestmentsLLCMember_019e21fb-1cf6-71a1-8a71-491fcd433d30" xlink:href="msif-20260630.xsd#msif_IronMainInvestmentsLLCMember"/>
    <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_IronMainInvestmentsLLCMember_019e21fb-1cf6-71a1-8a71-491fcd433d30" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IsagenixInternationalLLCMember_019e21fb-1cf6-7536-a94c-c59f994cf082" xlink:href="msif-20260630.xsd#msif_IsagenixInternationalLLCMember"/>
    <link:presentationArc order="91" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_IsagenixInternationalLLCMember_019e21fb-1cf6-7536-a94c-c59f994cf082" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IslandPumpAndTankLLCMember_019e21fb-1cf6-784e-a10d-c62dde9cdf7e" xlink:href="msif-20260630.xsd#msif_IslandPumpAndTankLLCMember"/>
    <link:presentationArc order="92" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_IslandPumpAndTankLLCMember_019e21fb-1cf6-784e-a10d-c62dde9cdf7e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ITAHoldingsGroupLLCMember_019e21fb-1cf6-7338-8abc-2c9b64b77f94" xlink:href="msif-20260630.xsd#msif_ITAHoldingsGroupLLCMember"/>
    <link:presentationArc order="93" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ITAHoldingsGroupLLCMember_019e21fb-1cf6-7338-8abc-2c9b64b77f94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_JackmontHospitalityIncMember_019e21fb-1cf6-7569-a16e-c044eec5e289" xlink:href="msif-20260630.xsd#msif_JackmontHospitalityIncMember"/>
    <link:presentationArc order="94" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_JackmontHospitalityIncMember_019e21fb-1cf6-7569-a16e-c044eec5e289" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_JoernsHealthcareLLCMember_019e21fb-1cf6-75eb-a297-9cad58b0b264" xlink:href="msif-20260630.xsd#msif_JoernsHealthcareLLCMember"/>
    <link:presentationArc order="95" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_JoernsHealthcareLLCMember_019e21fb-1cf6-75eb-a297-9cad58b0b264" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_JorVetHoldingsLLCMember_019e21fb-1cf6-75a3-a180-4dacca5d9b72" xlink:href="msif-20260630.xsd#msif_JorVetHoldingsLLCMember"/>
    <link:presentationArc order="96" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_JorVetHoldingsLLCMember_019e21fb-1cf6-75a3-a180-4dacca5d9b72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_JTIElectricalMechanicalLLCMember_019e21fb-1cf6-7869-bb81-34b8eb98b518" xlink:href="msif-20260630.xsd#msif_JTIElectricalMechanicalLLCMember"/>
    <link:presentationArc order="97" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_JTIElectricalMechanicalLLCMember_019e21fb-1cf6-7869-bb81-34b8eb98b518" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LogixAcquisitionCompanyLLCMember_019e21fb-1cf6-727d-a270-2f62f9ab5c73" xlink:href="msif-20260630.xsd#msif_LogixAcquisitionCompanyLLCMember"/>
    <link:presentationArc order="98" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_LogixAcquisitionCompanyLLCMember_019e21fb-1cf6-727d-a270-2f62f9ab5c73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MCTPurchasercoHoldingInc.Member_019e21fb-1cf6-71ef-9567-5e4a05faa6c5" xlink:href="msif-20260630.xsd#msif_MCTPurchasercoHoldingInc.Member"/>
    <link:presentationArc order="99" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MCTPurchasercoHoldingInc.Member_019e21fb-1cf6-71ef-9567-5e4a05faa6c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MetalformingHoldingsLLCMember_019e21fb-1cf6-7751-b1d1-6c0cb5fa4cd3" xlink:href="msif-20260630.xsd#msif_MetalformingHoldingsLLCMember"/>
    <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MetalformingHoldingsLLCMember_019e21fb-1cf6-7751-b1d1-6c0cb5fa4cd3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MicrobeFormulasLLCMember_019e21fb-1cf6-7af0-8077-6fb0e04ccf3f" xlink:href="msif-20260630.xsd#msif_MicrobeFormulasLLCMember"/>
    <link:presentationArc order="101" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MicrobeFormulasLLCMember_019e21fb-1cf6-7af0-8077-6fb0e04ccf3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MiniMeltsOfAmericaLLCMember_019e21fb-1cf6-7bd6-b948-f600174d74f2" xlink:href="msif-20260630.xsd#msif_MiniMeltsOfAmericaLLCMember"/>
    <link:presentationArc order="102" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MiniMeltsOfAmericaLLCMember_019e21fb-1cf6-7bd6-b948-f600174d74f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MissionCriticalGroupMember_019e21fb-1cf6-7e63-8eb5-08bb594fc040" xlink:href="msif-20260630.xsd#msif_MissionCriticalGroupMember"/>
    <link:presentationArc order="103" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MissionCriticalGroupMember_019e21fb-1cf6-7e63-8eb5-08bb594fc040" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MoneyThumbAcquisitionLLCMember_019e21fb-1cf6-74e0-9802-8db0d8bee5e2" xlink:href="msif-20260630.xsd#msif_MoneyThumbAcquisitionLLCMember"/>
    <link:presentationArc order="104" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MoneyThumbAcquisitionLLCMember_019e21fb-1cf6-74e0-9802-8db0d8bee5e2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MonitorUSHoldingLLCMember_019e21fb-1cf6-7143-9423-c6914e87b05c" xlink:href="msif-20260630.xsd#msif_MonitorUSHoldingLLCMember"/>
    <link:presentationArc order="105" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_MonitorUSHoldingLLCMember_019e21fb-1cf6-7143-9423-c6914e87b05c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ObraCapitalInc.Member_019e21fb-1cf6-7282-a49b-133ef2a2c684" xlink:href="msif-20260630.xsd#msif_ObraCapitalInc.Member"/>
    <link:presentationArc order="106" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ObraCapitalInc.Member_019e21fb-1cf6-7282-a49b-133ef2a2c684" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_OnPointIndustrialServicesLLCMember_019e21fb-1cf6-73a9-8330-7eb252add2aa" xlink:href="msif-20260630.xsd#msif_OnPointIndustrialServicesLLCMember"/>
    <link:presentationArc order="107" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_OnPointIndustrialServicesLLCMember_019e21fb-1cf6-73a9-8330-7eb252add2aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PavConLLCMember_019e21fb-1cf6-7c39-9fe5-0eb0da85b437" xlink:href="msif-20260630.xsd#msif_PavConLLCMember"/>
    <link:presentationArc order="108" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_PavConLLCMember_019e21fb-1cf6-7c39-9fe5-0eb0da85b437" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PrimeFlightAviationServicesMember_019e21fb-1cf6-7555-b37b-4a6383eef7b0" xlink:href="msif-20260630.xsd#msif_PrimeFlightAviationServicesMember"/>
    <link:presentationArc order="109" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_PrimeFlightAviationServicesMember_019e21fb-1cf6-7555-b37b-4a6383eef7b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ProMaxRestorationPaintLLCMember_019f9dca-0828-7f22-b3a5-d499ddeccb54" xlink:href="msif-20260630.xsd#msif_ProMaxRestorationPaintLLCMember"/>
    <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ProMaxRestorationPaintLLCMember_019f9dca-0828-7f22-b3a5-d499ddeccb54" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RichardsonSalesSolutionsMember_019e21fb-1cf6-72c2-8825-5e8fa10b36cc" xlink:href="msif-20260630.xsd#msif_RichardsonSalesSolutionsMember"/>
    <link:presentationArc order="111" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_RichardsonSalesSolutionsMember_019e21fb-1cf6-72c2-8825-5e8fa10b36cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RoofOpcoLLCMember_019e21fb-1cf6-793c-92fa-e5d3b0c14089" xlink:href="msif-20260630.xsd#msif_RoofOpcoLLCMember"/>
    <link:presentationArc order="112" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_RoofOpcoLLCMember_019e21fb-1cf6-793c-92fa-e5d3b0c14089" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RoyalCupInc.Member_019e21fb-1cf6-75f8-9449-eca32730a6cb" xlink:href="msif-20260630.xsd#msif_RoyalCupInc.Member"/>
    <link:presentationArc order="113" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_RoyalCupInc.Member_019e21fb-1cf6-75f8-9449-eca32730a6cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RugDoctorLLCMember_019e21fb-1cf6-7b33-b39e-74d83b9f9073" xlink:href="msif-20260630.xsd#msif_RugDoctorLLCMember"/>
    <link:presentationArc order="114" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_RugDoctorLLCMember_019e21fb-1cf6-7b33-b39e-74d83b9f9073" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SlickInnovationsLLCMember_019e21fb-1cf6-7dd2-b59d-7f8b168d1d6a" xlink:href="msif-20260630.xsd#msif_SlickInnovationsLLCMember"/>
    <link:presentationArc order="115" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_SlickInnovationsLLCMember_019e21fb-1cf6-7dd2-b59d-7f8b168d1d6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SouthCoastTerminalsHoldingsLLCMember_019e21fb-1cf6-73bf-bef6-7e6012ac122f" xlink:href="msif-20260630.xsd#msif_SouthCoastTerminalsHoldingsLLCMember"/>
    <link:presentationArc order="116" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_SouthCoastTerminalsHoldingsLLCMember_019e21fb-1cf6-73bf-bef6-7e6012ac122f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SPAUHoldingsLLCMember_019e21fb-1cf6-7412-be81-9e4a8357d070" xlink:href="msif-20260630.xsd#msif_SPAUHoldingsLLCMember"/>
    <link:presentationArc order="117" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_SPAUHoldingsLLCMember_019e21fb-1cf6-7412-be81-9e4a8357d070" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_TECServicesLLCMember_019e21fb-1cf6-72cb-908b-e6242f59b6db" xlink:href="msif-20260630.xsd#msif_TECServicesLLCMember"/>
    <link:presentationArc order="118" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_TECServicesLLCMember_019e21fb-1cf6-72cb-908b-e6242f59b6db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_TheAffiliatiNetworkLLCMember_019e21fb-1cf6-7912-b701-0c5815e66085" xlink:href="msif-20260630.xsd#msif_TheAffiliatiNetworkLLCMember"/>
    <link:presentationArc order="119" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_TheAffiliatiNetworkLLCMember_019e21fb-1cf6-7912-b701-0c5815e66085" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_TitanMeterMidcoCorp.Member_019e21fb-1cf6-71f2-a798-5c48509ce1ef" xlink:href="msif-20260630.xsd#msif_TitanMeterMidcoCorp.Member"/>
    <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_TitanMeterMidcoCorp.Member_019e21fb-1cf6-71f2-a798-5c48509ce1ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_USTelePacificCorpMember_019e21fb-1cf6-7ec0-a063-631d591c8044" xlink:href="msif-20260630.xsd#msif_USTelePacificCorpMember"/>
    <link:presentationArc order="121" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_USTelePacificCorpMember_019e21fb-1cf6-7ec0-a063-631d591c8044" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_UBMAcquireCoLLCMember_019e21fb-1cf6-7dc3-84a1-c6314d1cc5b8" xlink:href="msif-20260630.xsd#msif_UBMAcquireCoLLCMember"/>
    <link:presentationArc order="122" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_UBMAcquireCoLLCMember_019e21fb-1cf6-7dc3-84a1-c6314d1cc5b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_UPSIntermediateLLCMember_019e21fb-1cf6-7d3a-a874-e7ebaf733005" xlink:href="msif-20260630.xsd#msif_UPSIntermediateLLCMember"/>
    <link:presentationArc order="123" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_UPSIntermediateLLCMember_019e21fb-1cf6-7d3a-a874-e7ebaf733005" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_UserZoomTechnologiesInc.Member_019e21fb-1cf6-75fa-ab53-7f1a61cfe4dd" xlink:href="msif-20260630.xsd#msif_UserZoomTechnologiesInc.Member"/>
    <link:presentationArc order="124" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_UserZoomTechnologiesInc.Member_019e21fb-1cf6-75fa-ab53-7f1a61cfe4dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_VitesseSystemsMember_019e21fb-1cf6-78aa-941f-9e80130e8c7b" xlink:href="msif-20260630.xsd#msif_VitesseSystemsMember"/>
    <link:presentationArc order="125" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_VitesseSystemsMember_019e21fb-1cf6-78aa-941f-9e80130e8c7b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_WashWaxSystemsLLCMember_019e21fb-1cf6-780e-b107-1f3a7967a8f0" xlink:href="msif-20260630.xsd#msif_WashWaxSystemsLLCMember"/>
    <link:presentationArc order="126" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_WashWaxSystemsLLCMember_019e21fb-1cf6-780e-b107-1f3a7967a8f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_WattersonBrandsLLCMember_019e21fb-1cf6-76a5-a655-715e342daa64" xlink:href="msif-20260630.xsd#msif_WattersonBrandsLLCMember"/>
    <link:presentationArc order="127" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_WattersonBrandsLLCMember_019e21fb-1cf6-76a5-a655-715e342daa64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_WinterServicesLLCMember_019e21fb-1cf6-7e00-9059-73f730f72d2e" xlink:href="msif-20260630.xsd#msif_WinterServicesLLCMember"/>
    <link:presentationArc order="128" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_WinterServicesLLCMember_019e21fb-1cf6-7e00-9059-73f730f72d2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_WorldMicroHoldingsLLCMember_019e21fb-1cf6-72e6-ac95-4e9a9a1503f5" xlink:href="msif-20260630.xsd#msif_WorldMicroHoldingsLLCMember"/>
    <link:presentationArc order="129" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_WorldMicroHoldingsLLCMember_019e21fb-1cf6-72e6-ac95-4e9a9a1503f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_XenonArcIncMember_019e21fb-1cf6-7874-b456-3b6a48a74f6f" xlink:href="msif-20260630.xsd#msif_XenonArcIncMember"/>
    <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_XenonArcIncMember_019e21fb-1cf6-7874-b456-3b6a48a74f6f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ZRGPartnersLLCMember_019e21fb-1cf6-7d45-9a66-cbe1c935eded" xlink:href="msif-20260630.xsd#msif_ZRGPartnersLLCMember"/>
    <link:presentationArc order="131" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerNameDomain_019e21fb-1cf6-7054-b16c-2c181e714825" xlink:to="loc_msif_ZRGPartnersLLCMember_019e21fb-1cf6-7d45-9a66-cbe1c935eded" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7be9-9d22-23a62b5c8de7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1cf6-756c-9aa4-3794643ef3d7" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7be9-9d22-23a62b5c8de7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-70ca-a86e-3419e6262423" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1cf6-7be9-9d22-23a62b5c8de7" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-70ca-a86e-3419e6262423" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-7ac5-9af7-ee42f0014852" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerControlledMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-70ca-a86e-3419e6262423" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1cf6-7ac5-9af7-ee42f0014852" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-7862-906d-14eba34264b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-70ca-a86e-3419e6262423" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1cf6-7862-906d-14eba34264b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-7fd3-afeb-9229bdf89c8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentUnaffiliatedIssuerMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1cf6-70ca-a86e-3419e6262423" xlink:to="loc_us-gaap_InvestmentUnaffiliatedIssuerMember_019e21fb-1cf6-7fd3-afeb-9229bdf89c8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_019e21fb-1cf6-7666-9418-659e0ab1432a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1cf6-756c-9aa4-3794643ef3d7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_019e21fb-1cf6-7666-9418-659e0ab1432a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e21fb-1cf6-7bbe-9ef3-717a7bfeeb64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_019e21fb-1cf6-7666-9418-659e0ab1432a" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e21fb-1cf6-7bbe-9ef3-717a7bfeeb64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_019e21fb-1cf6-7c54-8b6e-8ef34d776d14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019e21fb-1cf6-7bbe-9ef3-717a7bfeeb64" xlink:to="loc_us-gaap_MoneyMarketFundsMember_019e21fb-1cf6-7c54-8b6e-8ef34d776d14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1cf6-756c-9aa4-3794643ef3d7" xlink:to="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedBalancePercentOfShares_019e21fb-1cf6-7ae3-b198-bf76647ab20f" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedBalancePercentOfShares"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_msif_InvestmentOwnedBalancePercentOfShares_019e21fb-1cf6-7ae3-b198-bf76647ab20f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedBalanceShares_019e21fb-1cf6-711e-b966-656b979429f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedBalanceShares"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentOwnedBalanceShares_019e21fb-1cf6-711e-b966-656b979429f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRate_019e21fb-1cf6-74ca-a908-de062ef14ec7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentInterestRate_019e21fb-1cf6-74ca-a908-de062ef14ec7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentBasisSpreadVariableRate_019e21fb-1cf6-7985-a22c-96ca3f1c220c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentBasisSpreadVariableRate"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentBasisSpreadVariableRate_019e21fb-1cf6-7985-a22c-96ca3f1c220c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRatePaidInKind_019e21fb-1cf6-71ee-818b-a9dd80602cb1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRatePaidInKind"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentInterestRatePaidInKind_019e21fb-1cf6-71ee-818b-a9dd80602cb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount_019e21fb-1cf6-731f-b8f8-0145a770378f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedBalancePrincipalAmount"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount_019e21fb-1cf6-731f-b8f8-0145a770378f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1cf6-7c43-8fbb-cfe0958f18a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtCost"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1cf6-7c43-8fbb-cfe0958f18a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1cf6-782f-92a3-4f70c5f06e8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1cf6-782f-92a3-4f70c5f06e8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedPercentOfNetAssets_019e21fb-1cf6-721f-9020-337cd653da1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedPercentOfNetAssets"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_InvestmentOwnedPercentOfNetAssets_019e21fb-1cf6-721f-9020-337cd653da1e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e21fb-1cf6-7418-87ee-8233422088d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e21fb-1cf6-7418-87ee-8233422088d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e21fb-1cf6-7db7-878e-785a9dd81c1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1cf6-7c6b-bc62-d7cd2b0811af" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019e21fb-1cf6-7db7-878e-785a9dd81c1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsParenthetical" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedScheduleofInvestmentsParenthetical"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsAbstract_019e21fb-1deb-7ad0-a257-2e74b3d530e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-7e7e-8f1f-1ccf8b143d19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsAbstract_019e21fb-1deb-7ad0-a257-2e74b3d530e5" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-7e7e-8f1f-1ccf8b143d19" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e21fb-1deb-7514-bed3-c68dfe21987b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-7e7e-8f1f-1ccf8b143d19" xlink:to="loc_srt_RangeAxis_019e21fb-1deb-7514-bed3-c68dfe21987b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e21fb-1deb-7c81-a138-e5c5e6f45047" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019e21fb-1deb-7514-bed3-c68dfe21987b" xlink:to="loc_srt_RangeMember_019e21fb-1deb-7c81-a138-e5c5e6f45047" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019e21fb-1deb-74c2-a79d-487c8d537f8a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7c81-a138-e5c5e6f45047" xlink:to="loc_srt_MinimumMember_019e21fb-1deb-74c2-a79d-487c8d537f8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019e21fb-1deb-737a-bf51-ff49c5b3ff8b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7c81-a138-e5c5e6f45047" xlink:to="loc_srt_MaximumMember_019e21fb-1deb-737a-bf51-ff49c5b3ff8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember_019e21fb-1deb-7b70-b4c0-b67a72d81df5" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_WeightedAverageMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7c81-a138-e5c5e6f45047" xlink:to="loc_srt_WeightedAverageMember_019e21fb-1deb-7b70-b4c0-b67a72d81df5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1deb-768b-94ce-cf4cf61ba4a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIdentifierAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-7e7e-8f1f-1ccf8b143d19" xlink:to="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1deb-768b-94ce-cf4cf61ba4a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019e21fb-1deb-7df8-8e24-86a0bdc45ebe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-7e7e-8f1f-1ccf8b143d19" xlink:to="loc_us-gaap_VariableRateAxis_019e21fb-1deb-7df8-8e24-86a0bdc45ebe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019e21fb-1deb-76a5-ae8c-40713725b0df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateAxis_019e21fb-1deb-7df8-8e24-86a0bdc45ebe" xlink:to="loc_us-gaap_VariableRateDomain_019e21fb-1deb-76a5-ae8c-40713725b0df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019e21fb-1deb-7186-9682-e91c0c05d97a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredOvernightFinancingRateSofrMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_019e21fb-1deb-76a5-ae8c-40713725b0df" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019e21fb-1deb-7186-9682-e91c0c05d97a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SOFRAdjustmentSpreadMember_019e21fb-1deb-701f-8daf-9105bfe82efd" xlink:href="msif-20260630.xsd#msif_SOFRAdjustmentSpreadMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_019e21fb-1deb-76a5-ae8c-40713725b0df" xlink:to="loc_msif_SOFRAdjustmentSpreadMember_019e21fb-1deb-701f-8daf-9105bfe82efd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-7e7e-8f1f-1ccf8b143d19" xlink:to="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPercentageOfLoansWithVariableRateFloors_019e21fb-1deb-75d6-b874-a6ef31cd8183" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPercentageOfLoansWithVariableRateFloors"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:to="loc_msif_InvestmentCompanyPercentageOfLoansWithVariableRateFloors_019e21fb-1deb-75d6-b874-a6ef31cd8183" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentBasisSpreadVariableRate_019e21fb-1deb-7b67-a21b-6b9ee1deb43d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentBasisSpreadVariableRate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:to="loc_us-gaap_InvestmentBasisSpreadVariableRate_019e21fb-1deb-7b67-a21b-6b9ee1deb43d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRateFloor_019e21fb-1deb-7c9d-a3bc-8c26a70b4ab7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRateFloor"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:to="loc_us-gaap_InvestmentInterestRateFloor_019e21fb-1deb-7c9d-a3bc-8c26a70b4ab7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRate_019e21fb-1deb-7e88-b1cd-c37ca981ad44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRate"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:to="loc_us-gaap_InvestmentInterestRate_019e21fb-1deb-7e88-b1cd-c37ca981ad44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OptionIndexedToIssuersEquityStrikePrice1_019e21fb-1deb-71b7-9d2c-847ff92a599d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OptionIndexedToIssuersEquityStrikePrice1"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:to="loc_us-gaap_OptionIndexedToIssuersEquityStrikePrice1_019e21fb-1deb-71b7-9d2c-847ff92a599d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentIndexBasedFloatingInterestRate_019e21fb-1deb-740e-88ce-b9df24ffb53d" xlink:href="msif-20260630.xsd#msif_InvestmentIndexBasedFloatingInterestRate"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:to="loc_msif_InvestmentIndexBasedFloatingInterestRate_019e21fb-1deb-740e-88ce-b9df24ffb53d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentInterestRateStated_019e21fb-1deb-79bb-b722-8a1768705a22" xlink:href="msif-20260630.xsd#msif_InvestmentInterestRateStated"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-71f6-b77e-02589865e802" xlink:to="loc_msif_InvestmentInterestRateStated_019e21fb-1deb-79bb-b722-8a1768705a22" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ORGANIZATIONANDBASISOFPRESENTATION" xlink:type="simple" xlink:href="msif-20260630.xsd#ORGANIZATIONANDBASISOFPRESENTATION"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ORGANIZATIONANDBASISOFPRESENTATION" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_019e21fb-1deb-775a-a3d9-fcd0871058a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_019e21fb-1deb-7204-b1da-fb333ffb77cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_019e21fb-1deb-775a-a3d9-fcd0871058a4" xlink:to="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_019e21fb-1deb-7204-b1da-fb333ffb77cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES" xlink:type="simple" xlink:href="msif-20260630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-7635-8ce8-824c2d8b1aef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_019e21fb-1deb-780b-ad9c-ac194d3f978e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SignificantAccountingPoliciesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-7635-8ce8-824c2d8b1aef" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_019e21fb-1deb-780b-ad9c-ac194d3f978e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITION" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITION"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITION" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-71fb-8092-a2c7e7afa9a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_019e21fb-1deb-7ca0-a7eb-170a41e1e6eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-71fb-8092-a2c7e7afa9a0" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_019e21fb-1deb-7ca0-a7eb-170a41e1e6eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBT" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBT"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBT" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-74db-a8da-b97d9605bb93" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureTextBlock_019e21fb-1deb-7787-8318-aa2d2075e97a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-74db-a8da-b97d9605bb93" xlink:to="loc_us-gaap_DebtDisclosureTextBlock_019e21fb-1deb-7787-8318-aa2d2075e97a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FINANCIALHIGHLIGHTS" xlink:type="simple" xlink:href="msif-20260630.xsd#FINANCIALHIGHLIGHTS"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FINANCIALHIGHLIGHTS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-7dc3-b95f-1a3259c7b7b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_019e21fb-1deb-7234-b416-1d0b1ca56369" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyFinancialHighlightsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-7dc3-b95f-1a3259c7b7b2" xlink:to="loc_us-gaap_InvestmentCompanyFinancialHighlightsTextBlock_019e21fb-1deb-7234-b416-1d0b1ca56369" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOME" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOME"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOME" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-72f9-a583-8120bc6df097" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DividendDistributionsIncomeTaxDisclosureTextBlock_019e21fb-1dec-7573-8e33-73ce060c06ad" xlink:href="msif-20260630.xsd#msif_DividendDistributionsIncomeTaxDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-72f9-a583-8120bc6df097" xlink:to="loc_msif_DividendDistributionsIncomeTaxDisclosureTextBlock_019e21fb-1dec-7573-8e33-73ce060c06ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLAN" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDREINVESTMENTPLAN"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLAN" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_019e21fb-1dec-7195-a567-bdd3383be9d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_StockholdersEquityDividendReinvestmentPlanTextBlock_019e21fb-1dec-71f6-b837-8105360ecbb5" xlink:href="msif-20260630.xsd#msif_StockholdersEquityDividendReinvestmentPlanTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_019e21fb-1dec-7195-a567-bdd3383be9d6" xlink:to="loc_msif_StockholdersEquityDividendReinvestmentPlanTextBlock_019e21fb-1dec-71f6-b837-8105360ecbb5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/COMMITMENTSANDCONTINGENCIES" xlink:type="simple" xlink:href="msif-20260630.xsd#COMMITMENTSANDCONTINGENCIES"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/COMMITMENTSANDCONTINGENCIES" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_019e21fb-1dec-70a6-95c5-19b90dfb95bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_019e21fb-1dec-7938-be3c-620cca872d21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_019e21fb-1dec-70a6-95c5-19b90dfb95bf" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_019e21fb-1dec-7938-be3c-620cca872d21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONS" xlink:type="simple" xlink:href="msif-20260630.xsd#RELATEDPARTYTRANSACTIONS"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7bab-a222-6b5e16a2af4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_019e21fb-1dec-7011-b7da-1b69ec1d98af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7bab-a222-6b5e16a2af4f" xlink:to="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_019e21fb-1dec-7011-b7da-1b69ec1d98af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/SUBSEQUENTEVENTS" xlink:type="simple" xlink:href="msif-20260630.xsd#SUBSEQUENTEVENTS"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/SUBSEQUENTEVENTS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventsAbstract_019e21fb-1dec-76da-9132-689cc6da7d8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_019e21fb-1dec-75c4-8e85-3d168cc979f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_019e21fb-1dec-76da-9132-689cc6da7d8e" xlink:to="loc_us-gaap_SubsequentEventsTextBlock_019e21fb-1dec-75c4-8e85-3d168cc979f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliates" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliates"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliates" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-7b74-852c-a7c5eb856dc4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock_019e21fb-1dec-70b9-8cf9-f0b8500adc09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-7b74-852c-a7c5eb856dc4" xlink:to="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTextBlock_019e21fb-1dec-70b9-8cf9-f0b8500adc09" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" xlink:type="simple" xlink:href="msif-20260630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_019e21fb-1deb-7d2a-beea-a3be2e612909" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_019e21fb-1deb-7d2a-beea-a3be2e612909" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_019e21fb-1deb-747b-bdcf-aaccb807264f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConsolidationPolicyTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_019e21fb-1deb-747b-bdcf-aaccb807264f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentPolicyTextBlock_019e21fb-1deb-7cdb-9a0e-31ceb55666e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentPolicyTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_InvestmentPolicyTextBlock_019e21fb-1deb-7cdb-9a0e-31ceb55666e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UseOfEstimates_019e21fb-1deb-78dd-a610-d036953b705c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UseOfEstimates"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_UseOfEstimates_019e21fb-1deb-78dd-a610-d036953b705c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_019e21fb-1deb-7478-a33b-13ebb68d5639" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_019e21fb-1deb-7478-a33b-13ebb68d5639" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRecognitionInterest_019e21fb-1deb-7e3c-9abc-fdf0dd376ebb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRecognitionInterest"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_RevenueRecognitionInterest_019e21fb-1deb-7e3c-9abc-fdf0dd376ebb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRecognitionDividends_019e21fb-1deb-74f0-a210-448e4c66de92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRecognitionDividends"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_RevenueRecognitionDividends_019e21fb-1deb-74f0-a210-448e4c66de92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ManagementAndInvestmentAdvisoryFeesPolicy_019e21fb-1deb-7444-a44a-662d7fa0c6f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementAndInvestmentAdvisoryFeesPolicy"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_ManagementAndInvestmentAdvisoryFeesPolicy_019e21fb-1deb-7444-a44a-662d7fa0c6f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtPolicyTextBlock_019e21fb-1deb-7641-ae14-261ddc3a88d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtPolicyTextBlock"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_DebtPolicyTextBlock_019e21fb-1deb-7641-ae14-261ddc3a88d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_EquityOfferingCostsPolicyTextBlock_019e21fb-1deb-710c-8918-04a28f73a4b6" xlink:href="msif-20260630.xsd#msif_EquityOfferingCostsPolicyTextBlock"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_msif_EquityOfferingCostsPolicyTextBlock_019e21fb-1deb-710c-8918-04a28f73a4b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_UnearnedIncomePolicyTextBlock_019e21fb-1deb-7834-9797-b21c8700bea5" xlink:href="msif-20260630.xsd#msif_UnearnedIncomePolicyTextBlock"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_msif_UnearnedIncomePolicyTextBlock_019e21fb-1deb-7834-9797-b21c8700bea5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_019e21fb-1deb-796a-95a4-89157d15e35b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxPolicyTextBlock"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_019e21fb-1deb-796a-95a4-89157d15e35b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_NetRealizedGainsOrLossesAndNetUnrealizedAppreciationOrDepreciationPolicyTextBlock_019e21fb-1deb-7602-971f-289e122e2f39" xlink:href="msif-20260630.xsd#msif_NetRealizedGainsOrLossesAndNetUnrealizedAppreciationOrDepreciationPolicyTextBlock"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_msif_NetRealizedGainsOrLossesAndNetUnrealizedAppreciationOrDepreciationPolicyTextBlock_019e21fb-1deb-7602-971f-289e122e2f39" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_019e21fb-1deb-7296-843d-f46912b56638" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_019e21fb-1deb-7296-843d-f46912b56638" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_019e21fb-1deb-7690-b7b6-d2318a7bf695" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerSharePolicyTextBlock"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_019e21fb-1deb-7690-b7b6-d2318a7bf695" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_019e21fb-1deb-75aa-8138-ee856909eea5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_019e21fb-1deb-75aa-8138-ee856909eea5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_019e21fb-1deb-7d38-a36f-82d8238950ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_019e21fb-1deb-7d38-a36f-82d8238950ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_019e21fb-1deb-7fc8-90c6-b252f765650e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-787d-a797-457ff114307e" xlink:to="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_019e21fb-1deb-7fc8-90c6-b252f765650e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables" xlink:type="simple" xlink:href="msif-20260630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-7ab6-874a-3776170a45d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeTextBlock_019e21fb-1deb-7046-892a-ead99658a8d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-7ab6-874a-3776170a45d5" xlink:to="loc_us-gaap_InvestmentIncomeTextBlock_019e21fb-1deb-7046-892a-ead99658a8d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONTables" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-72f2-920e-7c5c5b4ee412" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_019e21fb-1deb-7b0c-bf3b-3f6d26c56c7a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-72f2-920e-7c5c5b4ee412" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_019e21fb-1deb-7b0c-bf3b-3f6d26c56c7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_019e21fb-1deb-7658-983e-baf568760a2c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-72f2-920e-7c5c5b4ee412" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_019e21fb-1deb-7658-983e-baf568760a2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_019e21fb-1deb-77c4-ab10-90cc5113df4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-72f2-920e-7c5c5b4ee412" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock_019e21fb-1deb-77c4-ab10-90cc5113df4c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SummaryInvestmentHoldingsTextBlock_019e21fb-1deb-7ff1-956d-87e1061c53a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SummaryInvestmentHoldingsTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-72f2-920e-7c5c5b4ee412" xlink:to="loc_us-gaap_SummaryInvestmentHoldingsTextBlock_019e21fb-1deb-7ff1-956d-87e1061c53a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTTables" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-79fe-acc9-657c7c3f49f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock_019e21fb-1deb-7a8c-9f9a-e85156ae0ae8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfDebtTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-79fe-acc9-657c7c3f49f6" xlink:to="loc_us-gaap_ScheduleOfDebtTableTextBlock_019e21fb-1deb-7a8c-9f9a-e85156ae0ae8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_019e21fb-1deb-72aa-89fa-1d93289e2f04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-79fe-acc9-657c7c3f49f6" xlink:to="loc_us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_019e21fb-1deb-72aa-89fa-1d93289e2f04" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FINANCIALHIGHLIGHTSTables" xlink:type="simple" xlink:href="msif-20260630.xsd#FINANCIALHIGHLIGHTSTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FINANCIALHIGHLIGHTSTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-7bea-b3ed-248a6ef23472" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_019e21fb-1deb-7dbc-a4b6-1f4cb8458365" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-7bea-b3ed-248a6ef23472" xlink:to="loc_us-gaap_InvestmentCompanyFinancialHighlightsTableTextBlock_019e21fb-1deb-7dbc-a4b6-1f4cb8458365" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMETables" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMETables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMETables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-77a8-9a0a-160186ed2b79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDeclaredTableTextBlock_019e21fb-1dec-7ea0-88bc-fe9e25030849" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsDeclaredTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-77a8-9a0a-160186ed2b79" xlink:to="loc_us-gaap_DividendsDeclaredTableTextBlock_019e21fb-1dec-7ea0-88bc-fe9e25030849" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FederalIncomeTaxNoteTextBlock_019e21fb-1dec-7454-b8e5-d2db7dbcff88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FederalIncomeTaxNoteTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-77a8-9a0a-160186ed2b79" xlink:to="loc_us-gaap_FederalIncomeTaxNoteTextBlock_019e21fb-1dec-7454-b8e5-d2db7dbcff88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_019e21fb-1dec-759f-a298-2bc36e9e5851" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-77a8-9a0a-160186ed2b79" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_019e21fb-1dec-759f-a298-2bc36e9e5851" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLANTables" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDREINVESTMENTPLANTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLANTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_019e21fb-1dec-72c4-afab-6b2ae517cdfb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ScheduleOfSummarizedDividendReinvestmentPlanInformationTableTextBlock_019e21fb-1dec-7b9d-889b-d10856be2673" xlink:href="msif-20260630.xsd#msif_ScheduleOfSummarizedDividendReinvestmentPlanInformationTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_019e21fb-1dec-72c4-afab-6b2ae517cdfb" xlink:to="loc_msif_ScheduleOfSummarizedDividendReinvestmentPlanInformationTableTextBlock_019e21fb-1dec-7b9d-889b-d10856be2673" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/COMMITMENTSANDCONTINGENCIESTables" xlink:type="simple" xlink:href="msif-20260630.xsd#COMMITMENTSANDCONTINGENCIESTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/COMMITMENTSANDCONTINGENCIESTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_019e21fb-1dec-7c1d-b36b-a14417950ca5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOutstandingCapitalCommitmentsTableTextBlock_019e21fb-1dec-7f2e-a0ea-77376c80a4b5" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOutstandingCapitalCommitmentsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_019e21fb-1dec-7c1d-b36b-a14417950ca5" xlink:to="loc_msif_InvestmentCompanyOutstandingCapitalCommitmentsTableTextBlock_019e21fb-1dec-7f2e-a0ea-77376c80a4b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSTables" xlink:type="simple" xlink:href="msif-20260630.xsd#RELATEDPARTYTRANSACTIONSTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7b93-aafa-2b4877f2cb14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ManagementAndIncentiveFeeTableTextBlock_019e21fb-1dec-7c57-b78e-da224c4613ca" xlink:href="msif-20260630.xsd#msif_ManagementAndIncentiveFeeTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7b93-aafa-2b4877f2cb14" xlink:to="loc_msif_ManagementAndIncentiveFeeTableTextBlock_019e21fb-1dec-7c57-b78e-da224c4613ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AnnualBasisPointRateTableTextBlockTableTextBlock_019e21fb-1dec-7b09-a5f9-95974a68a23b" xlink:href="msif-20260630.xsd#msif_AnnualBasisPointRateTableTextBlockTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7b93-aafa-2b4877f2cb14" xlink:to="loc_msif_AnnualBasisPointRateTableTextBlockTableTextBlock_019e21fb-1dec-7b09-a5f9-95974a68a23b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesTables" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesTables"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-7bb4-954e-c1e0931fe5ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTableTextBlock_019e21fb-1dec-7973-9f8d-3be92d102e26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-7bb4-954e-c1e0931fe5ea" xlink:to="loc_us-gaap_ScheduleOfInvestmentsInAndAdvancesToAffiliatesScheduleOfInvestmentsTableTextBlock_019e21fb-1dec-7973-9f8d-3be92d102e26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ORGANIZATIONANDBASISOFPRESENTATIONDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#ORGANIZATIONANDBASISOFPRESENTATIONDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ORGANIZATIONANDBASISOFPRESENTATIONDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_019e21fb-1deb-7768-b52e-4e72fc33cad9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable_019e21fb-1deb-7a5e-b119-a56515adbd2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_019e21fb-1deb-7768-b52e-4e72fc33cad9" xlink:to="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable_019e21fb-1deb-7a5e-b119-a56515adbd2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_019e21fb-1deb-73bd-b960-c78689afbaad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable_019e21fb-1deb-7a5e-b119-a56515adbd2b" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_019e21fb-1deb-73bd-b960-c78689afbaad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1deb-7dac-ac59-d9821e6c8259" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019e21fb-1deb-73bd-b960-c78689afbaad" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1deb-7dac-ac59-d9821e6c8259" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_FollowOnPublicOfferingMember_019e21fb-1deb-7574-9cdc-9bf831de6000" xlink:href="msif-20260630.xsd#msif_FollowOnPublicOfferingMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1deb-7dac-ac59-d9821e6c8259" xlink:to="loc_msif_FollowOnPublicOfferingMember_019e21fb-1deb-7574-9cdc-9bf831de6000" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InitialPublicOfferingMember_019e21fb-1deb-7368-9770-948b3150011a" xlink:href="msif-20260630.xsd#msif_InitialPublicOfferingMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1deb-7dac-ac59-d9821e6c8259" xlink:to="loc_msif_InitialPublicOfferingMember_019e21fb-1deb-7368-9770-948b3150011a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OverAllotmentOptionMember_019e21fb-1deb-70bd-b05d-a04da37af2e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OverAllotmentOptionMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1deb-7dac-ac59-d9821e6c8259" xlink:to="loc_us-gaap_OverAllotmentOptionMember_019e21fb-1deb-70bd-b05d-a04da37af2e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockLineItems_019e21fb-1deb-7766-9295-aac2832269be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiarySaleOfStockLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable_019e21fb-1deb-7a5e-b119-a56515adbd2b" xlink:to="loc_us-gaap_SubsidiarySaleOfStockLineItems_019e21fb-1deb-7766-9295-aac2832269be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019e21fb-1deb-77d0-8253-744b6da7f0a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockLineItems_019e21fb-1deb-7766-9295-aac2832269be" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019e21fb-1deb-77d0-8253-744b6da7f0a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_019e21fb-1deb-72b5-bb20-a8265f0015a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockLineItems_019e21fb-1deb-7766-9295-aac2832269be" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_019e21fb-1deb-72b5-bb20-a8265f0015a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_019e21fb-1deb-79ba-9f44-e0069762db7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockLineItems_019e21fb-1deb-7766-9295-aac2832269be" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_019e21fb-1deb-79ba-9f44-e0069762db7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-7328-99e6-e66c18b65436" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-79d3-96e3-78f49a9771c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-7328-99e6-e66c18b65436" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-79d3-96e3-78f49a9771c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-7de6-b9af-28a858ed43a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-79d3-96e3-78f49a9771c0" xlink:to="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-7de6-b9af-28a858ed43a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-73e3-9420-1791b8cea624" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-7de6-b9af-28a858ed43a7" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-73e3-9420-1791b8cea624" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-784f-9f4c-4cd7ca10336c" xlink:href="msif-20260630.xsd#msif_PrivateLoanPortfolioMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-73e3-9420-1791b8cea624" xlink:to="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-784f-9f4c-4cd7ca10336c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-764a-8268-824a56f4612a" xlink:href="msif-20260630.xsd#msif_LowerMiddleMarketPortfolioMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-73e3-9420-1791b8cea624" xlink:to="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-764a-8268-824a56f4612a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MiddleMarketPortfolioMember_019e21fb-1deb-788d-9c00-6676eec0374b" xlink:href="msif-20260630.xsd#msif_MiddleMarketPortfolioMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-73e3-9420-1791b8cea624" xlink:to="loc_msif_MiddleMarketPortfolioMember_019e21fb-1deb-788d-9c00-6676eec0374b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-7d1d-b063-b50a15d966a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAggregatedInvestmentsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-73e3-9420-1791b8cea624" xlink:to="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-7d1d-b063-b50a15d966a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7526-b160-b2b456f14890" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-79d3-96e3-78f49a9771c0" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7526-b160-b2b456f14890" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7439-bc7a-0abc17ee2dc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7526-b160-b2b456f14890" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7439-bc7a-0abc17ee2dc2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7f63-959d-2bce3e55d9f9" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtFairValueMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7439-bc7a-0abc17ee2dc2" xlink:to="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7f63-959d-2bce3e55d9f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7707-be4c-a1c8db8ecca9" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtCostMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7439-bc7a-0abc17ee2dc2" xlink:to="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7707-be4c-a1c8db8ecca9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-72d6-9083-e4536ac88928" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-79d3-96e3-78f49a9771c0" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-72d6-9083-e4536ac88928" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7b27-b8d1-d6419952d81c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-72d6-9083-e4536ac88928" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7b27-b8d1-d6419952d81c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-705d-8575-79a265559c12" xlink:href="msif-20260630.xsd#msif_InvestmentTypeConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7b27-b8d1-d6419952d81c" xlink:to="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-705d-8575-79a265559c12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentPerformanceStatusAxis_019e21fb-1deb-71a1-bc36-3bc804c75f24" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentPerformanceStatusAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-79d3-96e3-78f49a9771c0" xlink:to="loc_us-gaap_FinancialInstrumentPerformanceStatusAxis_019e21fb-1deb-71a1-bc36-3bc804c75f24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentPerformanceStatusDomain_019e21fb-1deb-7e65-acbf-12bc8c8b2eb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentPerformanceStatusDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentPerformanceStatusAxis_019e21fb-1deb-71a1-bc36-3bc804c75f24" xlink:to="loc_us-gaap_FinancialInstrumentPerformanceStatusDomain_019e21fb-1deb-7e65-acbf-12bc8c8b2eb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonperformingFinancingReceivableMember_019e21fb-1deb-729a-91fb-3d7a6dd40430" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonperformingFinancingReceivableMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentPerformanceStatusDomain_019e21fb-1deb-7e65-acbf-12bc8c8b2eb0" xlink:to="loc_us-gaap_NonperformingFinancingReceivableMember_019e21fb-1deb-729a-91fb-3d7a6dd40430" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_019e21fb-1deb-79d3-96e3-78f49a9771c0" xlink:to="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyConsultationPeriodSubsequentToInitialInvestment_019e21fb-1deb-7133-a576-146b3c762940" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyConsultationPeriodSubsequentToInitialInvestment"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_msif_InvestmentCompanyConsultationPeriodSubsequentToInitialInvestment_019e21fb-1deb-7133-a576-146b3c762940" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyNumberOfPortfolioCompaniesWithAnnualThirdPartyAppraisalWasObtainedReviewedAndCertified_019e21fb-1deb-7000-a034-a1d4f714fe1f" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyNumberOfPortfolioCompaniesWithAnnualThirdPartyAppraisalWasObtainedReviewedAndCertified"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_msif_InvestmentCompanyNumberOfPortfolioCompaniesWithAnnualThirdPartyAppraisalWasObtainedReviewedAndCertified_019e21fb-1deb-7000-a034-a1d4f714fe1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-73d7-a3c9-3a0e691718bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-73d7-a3c9-3a0e691718bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPercentageOfPortfolioWithAnnualThirdPartyAppraisalWasObtainedReviewedAndCertified_019e21fb-1deb-7f94-b7eb-86c8d32bf6dc" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPercentageOfPortfolioWithAnnualThirdPartyAppraisalWasObtainedReviewedAndCertified"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_msif_InvestmentCompanyPercentageOfPortfolioWithAnnualThirdPartyAppraisalWasObtainedReviewedAndCertified_019e21fb-1deb-7f94-b7eb-86c8d32bf6dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPortfolioInvestmentsLimitedConsultationWithFinancialAdvisoryServicesFirmPercentage_019e21fb-1deb-7c43-a8b5-18aec8ef2aa5" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPortfolioInvestmentsLimitedConsultationWithFinancialAdvisoryServicesFirmPercentage"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_msif_InvestmentCompanyPortfolioInvestmentsLimitedConsultationWithFinancialAdvisoryServicesFirmPercentage_019e21fb-1deb-7c43-a8b5-18aec8ef2aa5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsAtCarryingValue_019e21fb-1deb-7b97-b52c-88ae3dffe8bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MoneyMarketFundsAtCarryingValue"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_us-gaap_MoneyMarketFundsAtCarryingValue_019e21fb-1deb-7b97-b52c-88ae3dffe8bf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashUninsuredAmount_019e21fb-1deb-73b8-980e-1e0855873671" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashUninsuredAmount"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_us-gaap_CashUninsuredAmount_019e21fb-1deb-73b8-980e-1e0855873671" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-7bcc-9ad4-5f20768d76e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-7bcc-9ad4-5f20768d76e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1deb-796a-93bd-00d9bfbd0bed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtCost"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1deb-796a-93bd-00d9bfbd0bed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToNoncashPaidInKindInterestIncome_019e21fb-1deb-7dd0-8cbd-b3154e130b53" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToNoncashPaidInKindInterestIncome"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToNoncashPaidInKindInterestIncome_019e21fb-1deb-7dd0-8cbd-b3154e130b53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToNoncashCumulativeDividendIncome_019e21fb-1deb-7b08-a9f3-f0a3ef6352e3" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToNoncashCumulativeDividendIncome"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToNoncashCumulativeDividendIncome_019e21fb-1deb-7b08-a9f3-f0a3ef6352e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToInterestIncomeDebtInvestmentsNet_019e21fb-1deb-7f94-be47-a557442749a0" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToInterestIncomeDebtInvestmentsNet"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_msif_InvestmentCompanyPercentageOfTotalInvestmentIncomeAttributableToInterestIncomeDebtInvestmentsNet_019e21fb-1deb-7f94-be47-a557442749a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019e21fb-1deb-7b91-b39f-e9f4938074d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1deb-7799-85ed-b99deb0ba0e6" xlink:to="loc_us-gaap_NumberOfReportableSegments_019e21fb-1deb-7b91-b39f-e9f4938074d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofInvestmentIncomeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofInvestmentIncomeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofInvestmentIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-733b-a6f2-9e0a8628b851" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019e21fb-1deb-7438-a1a1-602765df618b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-733b-a6f2-9e0a8628b851" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019e21fb-1deb-7438-a1a1-602765df618b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeDividend_019e21fb-1deb-770a-b9a1-a7cb59b60e01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeDividend"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-733b-a6f2-9e0a8628b851" xlink:to="loc_us-gaap_InvestmentIncomeDividend_019e21fb-1deb-770a-b9a1-a7cb59b60e01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FeeIncome_019e21fb-1deb-78bf-8c49-92ddcf5fb587" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FeeIncome"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-733b-a6f2-9e0a8628b851" xlink:to="loc_us-gaap_FeeIncome_019e21fb-1deb-78bf-8c49-92ddcf5fb587" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossInvestmentIncomeOperating_019e21fb-1deb-7c40-9577-63b25a9adf78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrossInvestmentIncomeOperating"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_019e21fb-1deb-733b-a6f2-9e0a8628b851" xlink:to="loc_us-gaap_GrossInvestmentIncomeOperating_019e21fb-1deb-7c40-9577-63b25a9adf78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofFairValueMeasurementInputsandValuationTechniquesDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofFairValueMeasurementInputsandValuationTechniquesDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofFairValueMeasurementInputsandValuationTechniquesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7f9e-9fed-ecc1e58998f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7f9e-9fed-ecc1e58998f8" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e21fb-1deb-7a30-938d-189a75938d6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e21fb-1deb-7a30-938d-189a75938d6f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7440-90b1-866bf1d7f0c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e21fb-1deb-7a30-938d-189a75938d6f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7440-90b1-866bf1d7f0c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019e21fb-1deb-72dc-bdfa-836cd0154272" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7440-90b1-866bf1d7f0c5" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019e21fb-1deb-72dc-bdfa-836cd0154272" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-723f-9c29-05236dfc788c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-723f-9c29-05236dfc788c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-775a-9d73-2d0a6ae73bc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-723f-9c29-05236dfc788c" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-775a-9d73-2d0a6ae73bc8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-7a3b-b626-fafd493284d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-775a-9d73-2d0a6ae73bc8" xlink:to="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-7a3b-b626-fafd493284d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-7008-8a20-83cf5b5fc99c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-775a-9d73-2d0a6ae73bc8" xlink:to="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-7008-8a20-83cf5b5fc99c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueAxis_019e21fb-1deb-78f0-a33c-26abcc933c4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ValuationTechniqueAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:to="loc_us-gaap_ValuationTechniqueAxis_019e21fb-1deb-78f0-a33c-26abcc933c4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueDomain_019e21fb-1deb-76b6-9db4-811e6837e8b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ValuationTechniqueDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationTechniqueAxis_019e21fb-1deb-78f0-a33c-26abcc933c4f" xlink:to="loc_us-gaap_ValuationTechniqueDomain_019e21fb-1deb-76b6-9db4-811e6837e8b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationTechniqueDiscountedCashFlowMember_019e21fb-1deb-7075-a22d-28cb6da9437a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ValuationTechniqueDiscountedCashFlowMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationTechniqueDomain_019e21fb-1deb-76b6-9db4-811e6837e8b4" xlink:to="loc_us-gaap_ValuationTechniqueDiscountedCashFlowMember_019e21fb-1deb-7075-a22d-28cb6da9437a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ValuationMarketAndEnterpriseValueApproachMember_019e21fb-1deb-7132-aa37-16185a7d7908" xlink:href="msif-20260630.xsd#msif_ValuationMarketAndEnterpriseValueApproachMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationTechniqueDomain_019e21fb-1deb-76b6-9db4-811e6837e8b4" xlink:to="loc_msif_ValuationMarketAndEnterpriseValueApproachMember_019e21fb-1deb-7132-aa37-16185a7d7908" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketApproachValuationTechniqueMember_019e21fb-1deb-77be-a331-37eaa69cee68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketApproachValuationTechniqueMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationTechniqueDomain_019e21fb-1deb-76b6-9db4-811e6837e8b4" xlink:to="loc_us-gaap_MarketApproachValuationTechniqueMember_019e21fb-1deb-77be-a331-37eaa69cee68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e21fb-1deb-798a-834a-2b566a53dc61" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:to="loc_srt_RangeAxis_019e21fb-1deb-798a-834a-2b566a53dc61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e21fb-1deb-7a86-abad-6a6199aefed8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019e21fb-1deb-798a-834a-2b566a53dc61" xlink:to="loc_srt_RangeMember_019e21fb-1deb-7a86-abad-6a6199aefed8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019e21fb-1deb-75aa-83c6-71561b362098" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7a86-abad-6a6199aefed8" xlink:to="loc_srt_MinimumMember_019e21fb-1deb-75aa-83c6-71561b362098" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019e21fb-1deb-783b-a3be-74ff88e98032" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7a86-abad-6a6199aefed8" xlink:to="loc_srt_MaximumMember_019e21fb-1deb-783b-a3be-74ff88e98032" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember_019e21fb-1deb-76c9-bd4b-345c9bed3a8d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_WeightedAverageMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7a86-abad-6a6199aefed8" xlink:to="loc_srt_WeightedAverageMember_019e21fb-1deb-76c9-bd4b-345c9bed3a8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MedianMember_019e21fb-1deb-7993-8fe3-01b2b30fb05d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MedianMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7a86-abad-6a6199aefed8" xlink:to="loc_srt_MedianMember_019e21fb-1deb-7993-8fe3-01b2b30fb05d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_019e21fb-1deb-7b58-9de9-d42c19b10ddc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_019e21fb-1deb-7b58-9de9-d42c19b10ddc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_019e21fb-1deb-7919-943d-1a5357d33353" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_019e21fb-1deb-7b58-9de9-d42c19b10ddc" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_019e21fb-1deb-7919-943d-1a5357d33353" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MeasurementInputWeightedAverageCostOfCapitalMember_019e21fb-1deb-729c-940c-a48a67437cb3" xlink:href="msif-20260630.xsd#msif_MeasurementInputWeightedAverageCostOfCapitalMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019e21fb-1deb-7919-943d-1a5357d33353" xlink:to="loc_msif_MeasurementInputWeightedAverageCostOfCapitalMember_019e21fb-1deb-729c-940c-a48a67437cb3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputEbitdaMultipleMember_019e21fb-1deb-74d8-b1f0-033f40df573b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputEbitdaMultipleMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019e21fb-1deb-7919-943d-1a5357d33353" xlink:to="loc_us-gaap_MeasurementInputEbitdaMultipleMember_019e21fb-1deb-74d8-b1f0-033f40df573b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MeasurementInputEBITDAMultipleOutlierMember_019e21fb-1deb-7502-a845-6bef23ccb7a8" xlink:href="msif-20260630.xsd#msif_MeasurementInputEBITDAMultipleOutlierMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputEbitdaMultipleMember_019e21fb-1deb-74d8-b1f0-033f40df573b" xlink:to="loc_msif_MeasurementInputEBITDAMultipleOutlierMember_019e21fb-1deb-7502-a845-6bef23ccb7a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MeasurementInputRiskAdjustedDiscountFactorMember_019e21fb-1deb-7570-8a6c-ba9b7714f4ba" xlink:href="msif-20260630.xsd#msif_MeasurementInputRiskAdjustedDiscountFactorMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019e21fb-1deb-7919-943d-1a5357d33353" xlink:to="loc_msif_MeasurementInputRiskAdjustedDiscountFactorMember_019e21fb-1deb-7570-8a6c-ba9b7714f4ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MeasurementInputRiskAdjustedDiscountFactorOutlierMember_019e21fb-1deb-79d4-9b7a-d72e5ebf67ef" xlink:href="msif-20260630.xsd#msif_MeasurementInputRiskAdjustedDiscountFactorOutlierMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_MeasurementInputRiskAdjustedDiscountFactorMember_019e21fb-1deb-7570-8a6c-ba9b7714f4ba" xlink:to="loc_msif_MeasurementInputRiskAdjustedDiscountFactorOutlierMember_019e21fb-1deb-79d4-9b7a-d72e5ebf67ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MeasurementInputExpectedPrincipalRecoveryPercentageMember_019e21fb-1deb-744e-94f7-05b8b70e150b" xlink:href="msif-20260630.xsd#msif_MeasurementInputExpectedPrincipalRecoveryPercentageMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019e21fb-1deb-7919-943d-1a5357d33353" xlink:to="loc_msif_MeasurementInputExpectedPrincipalRecoveryPercentageMember_019e21fb-1deb-744e-94f7-05b8b70e150b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MeasurementInputThirdPartyQuoteMember_019e21fb-1deb-7236-abef-de52b1338e97" xlink:href="msif-20260630.xsd#msif_MeasurementInputThirdPartyQuoteMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019e21fb-1deb-7919-943d-1a5357d33353" xlink:to="loc_msif_MeasurementInputThirdPartyQuoteMember_019e21fb-1deb-7236-abef-de52b1338e97" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-7c84-92f5-5be9e901952a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7501-b4f7-db45e5d5de70" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-7c84-92f5-5be9e901952a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-7c09-b123-b93642ffb223" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-7c84-92f5-5be9e901952a" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-7c09-b123-b93642ffb223" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput_019e21fb-1deb-70d7-aacb-59d5cfb270ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-7c84-92f5-5be9e901952a" xlink:to="loc_us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput_019e21fb-1deb-70d7-aacb-59d5cfb270ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofLevel3PortfolioInvestmentsDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofLevel3PortfolioInvestmentsDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofLevel3PortfolioInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7ebf-8845-6a0163d26a16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7dce-8e5b-749654f59db4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7ebf-8845-6a0163d26a16" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7dce-8e5b-749654f59db4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_019e21fb-1deb-75ab-ad24-ae1a9e2716a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7dce-8e5b-749654f59db4" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_019e21fb-1deb-75ab-ad24-ae1a9e2716a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019e21fb-1deb-7fc5-b3d4-0b6cf4d7b23b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_019e21fb-1deb-75ab-ad24-ae1a9e2716a6" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019e21fb-1deb-7fc5-b3d4-0b6cf4d7b23b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsMember_019e21fb-1deb-7ca0-ade4-ce3a9fb0f3c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019e21fb-1deb-7fc5-b3d4-0b6cf4d7b23b" xlink:to="loc_us-gaap_InvestmentsMember_019e21fb-1deb-7ca0-ade4-ce3a9fb0f3c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-79d0-a6d3-ce1cb225ef38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsMember_019e21fb-1deb-7ca0-ade4-ce3a9fb0f3c4" xlink:to="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-79d0-a6d3-ce1cb225ef38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-7f74-a0b1-b5b8d8b64f8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsMember_019e21fb-1deb-7ca0-ade4-ce3a9fb0f3c4" xlink:to="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-7f74-a0b1-b5b8d8b64f8e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_EquityWarrantMember_019e21fb-1deb-78a0-ac49-54dd7466b2c1" xlink:href="msif-20260630.xsd#msif_EquityWarrantMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsMember_019e21fb-1deb-7ca0-ade4-ce3a9fb0f3c4" xlink:to="loc_msif_EquityWarrantMember_019e21fb-1deb-78a0-ac49-54dd7466b2c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019e21fb-1deb-7cc4-ba3d-dd434594533e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7dce-8e5b-749654f59db4" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019e21fb-1deb-7cc4-ba3d-dd434594533e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-76c6-babb-2b536eb8346b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTable_019e21fb-1deb-7dce-8e5b-749654f59db4" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-76c6-babb-2b536eb8346b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-76c6-babb-2b536eb8346b" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019e21fb-1deb-7e4e-b7a8-52aa55a4af2e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019e21fb-1deb-7e4e-b7a8-52aa55a4af2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_019e21fb-1deb-7f0d-af8f-4a52cc4a2287" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet_019e21fb-1deb-7f0d-af8f-4a52cc4a2287" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_019e21fb-1deb-7da1-881c-cd91cb8d8281" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_019e21fb-1deb-7da1-881c-cd91cb8d8281" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_019e21fb-1deb-7f9d-b18b-cd0cead4954a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_019e21fb-1deb-7f9d-b18b-cd0cead4954a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_019e21fb-1deb-7c13-b25f-36c8e8e53880" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1_019e21fb-1deb-7c13-b25f-36c8e8e53880" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetOther_019e21fb-1deb-70a4-ac32-ce45a1457372" xlink:href="msif-20260630.xsd#msif_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetOther"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:to="loc_msif_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetOther_019e21fb-1deb-70a4-ac32-ce45a1457372" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019e21fb-1deb-7434-9bc8-1a5cab878e1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019e21fb-1deb-7b9a-8fa9-623dfeedda67" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_019e21fb-1deb-7434-9bc8-1a5cab878e1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_019ecc4b-0ee7-7420-97be-f09af318878e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019e21fb-1deb-76c6-babb-2b536eb8346b" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_019ecc4b-0ee7-7420-97be-f09af318878e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofInvestmentsatFairValueHierarchyDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofInvestmentsatFairValueHierarchyDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofInvestmentsatFairValueHierarchyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7366-b6e9-bd141c1df3fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e21fb-1deb-7d2e-bc71-089560dad5e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7366-b6e9-bd141c1df3fd" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e21fb-1deb-7d2e-bc71-089560dad5e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7cbf-b50f-2750632518d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e21fb-1deb-7d2e-bc71-089560dad5e5" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7cbf-b50f-2750632518d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7046-b910-74bedd9883cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7cbf-b50f-2750632518d0" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7046-b910-74bedd9883cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-732b-bd05-66804942706c" xlink:href="msif-20260630.xsd#msif_PrivateLoanPortfolioMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7046-b910-74bedd9883cf" xlink:to="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-732b-bd05-66804942706c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-7ec6-8ccb-c5551fb90b73" xlink:href="msif-20260630.xsd#msif_LowerMiddleMarketPortfolioMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7046-b910-74bedd9883cf" xlink:to="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-7ec6-8ccb-c5551fb90b73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MiddleMarketPortfolioMember_019e21fb-1deb-7ec1-b147-7949325c521b" xlink:href="msif-20260630.xsd#msif_MiddleMarketPortfolioMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7046-b910-74bedd9883cf" xlink:to="loc_msif_MiddleMarketPortfolioMember_019e21fb-1deb-7ec1-b147-7949325c521b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-7eac-a450-302bff8ef7c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAggregatedInvestmentsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7046-b910-74bedd9883cf" xlink:to="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-7eac-a450-302bff8ef7c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e21fb-1deb-71bc-9206-3af1238d22cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e21fb-1deb-7d2e-bc71-089560dad5e5" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e21fb-1deb-71bc-9206-3af1238d22cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7fec-9c3f-6ab4e7fb41c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019e21fb-1deb-71bc-9206-3af1238d22cc" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7fec-9c3f-6ab4e7fb41c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019e21fb-1deb-7b9d-af45-22a81a1e644a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7fec-9c3f-6ab4e7fb41c9" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019e21fb-1deb-7b9d-af45-22a81a1e644a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019e21fb-1deb-7de0-b37c-e5bed013a38e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7fec-9c3f-6ab4e7fb41c9" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019e21fb-1deb-7de0-b37c-e5bed013a38e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019e21fb-1deb-7636-81c8-1c47d3646571" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019e21fb-1deb-7fec-9c3f-6ab4e7fb41c9" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019e21fb-1deb-7636-81c8-1c47d3646571" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e21fb-1deb-7ee0-8274-d1ba0647445f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019e21fb-1deb-7d2e-bc71-089560dad5e5" xlink:to="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e21fb-1deb-7ee0-8274-d1ba0647445f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-7d6b-bc16-61cc53abdb10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019e21fb-1deb-7ee0-8274-d1ba0647445f" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-7d6b-bc16-61cc53abdb10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONNarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7052-81ab-5d69ca3bfa96" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-7052-81ab-5d69ca3bfa96" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-79a3-b53c-895ab41155d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:to="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-79a3-b53c-895ab41155d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7f98-b23e-a99f6899d73d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-79a3-b53c-895ab41155d6" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7f98-b23e-a99f6899d73d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-7054-9c5f-6be84242b6c4" xlink:href="msif-20260630.xsd#msif_PrivateLoanPortfolioMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7f98-b23e-a99f6899d73d" xlink:to="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-7054-9c5f-6be84242b6c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-7d3e-ab62-c995b93553bc" xlink:href="msif-20260630.xsd#msif_LowerMiddleMarketPortfolioMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7f98-b23e-a99f6899d73d" xlink:to="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-7d3e-ab62-c995b93553bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MiddleMarketPortfolioMember_019e21fb-1deb-777e-8f55-80e5d7c55281" xlink:href="msif-20260630.xsd#msif_MiddleMarketPortfolioMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7f98-b23e-a99f6899d73d" xlink:to="loc_msif_MiddleMarketPortfolioMember_019e21fb-1deb-777e-8f55-80e5d7c55281" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-79ab-aafa-01470eab94dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAggregatedInvestmentsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7f98-b23e-a99f6899d73d" xlink:to="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-79ab-aafa-01470eab94dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e21fb-1deb-77fb-9a95-3179ed9ec4dc" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:to="loc_srt_RangeAxis_019e21fb-1deb-77fb-9a95-3179ed9ec4dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e21fb-1deb-7372-9b22-faf6a1b4aaf7" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019e21fb-1deb-77fb-9a95-3179ed9ec4dc" xlink:to="loc_srt_RangeMember_019e21fb-1deb-7372-9b22-faf6a1b4aaf7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019e21fb-1deb-7c83-be68-d95d714dfc0f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7372-9b22-faf6a1b4aaf7" xlink:to="loc_srt_MinimumMember_019e21fb-1deb-7c83-be68-d95d714dfc0f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019e21fb-1deb-7433-b605-dec548aa9ad4" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7372-9b22-faf6a1b4aaf7" xlink:to="loc_srt_MaximumMember_019e21fb-1deb-7433-b605-dec548aa9ad4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7d1c-a51e-b959028ab95b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7d1c-a51e-b959028ab95b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-771a-aace-e6a09d1e8581" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7d1c-a51e-b959028ab95b" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-771a-aace-e6a09d1e8581" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-7381-aca4-25782eab4764" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-771a-aace-e6a09d1e8581" xlink:to="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-7381-aca4-25782eab4764" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7d52-840a-7d547974b0e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7d52-840a-7d547974b0e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7586-8cf4-0fc341075de2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7d52-840a-7d547974b0e8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7586-8cf4-0fc341075de2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7687-b0e4-95a241419b34" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtFairValueMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7586-8cf4-0fc341075de2" xlink:to="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7687-b0e4-95a241419b34" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7efa-8f06-fd37e0a4235b" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtCostMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7586-8cf4-0fc341075de2" xlink:to="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7efa-8f06-fd37e0a4235b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-7133-8f8d-3f2a1ecdf34b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-7133-8f8d-3f2a1ecdf34b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-744e-a76b-8bbc937d9cda" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-7133-8f8d-3f2a1ecdf34b" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-744e-a76b-8bbc937d9cda" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-7bd5-9b39-a95f9bba636c" xlink:href="msif-20260630.xsd#msif_InvestmentTypeConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-744e-a76b-8bbc937d9cda" xlink:to="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-7bd5-9b39-a95f9bba636c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019e21fb-1deb-7f00-a607-6b7611ccf866" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentsAnnualRevenuesPerCompany_019e21fb-1deb-77a8-95bf-d1cf34982980" xlink:href="msif-20260630.xsd#msif_InvestmentsAnnualRevenuesPerCompany"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentsAnnualRevenuesPerCompany_019e21fb-1deb-77a8-95bf-d1cf34982980" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentsPerCompany_019e21fb-1deb-7448-b7c4-b9424c5ae0f4" xlink:href="msif-20260630.xsd#msif_InvestmentsPerCompany"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentsPerCompany_019e21fb-1deb-7448-b7c4-b9424c5ae0f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentTerm_019e21fb-1deb-7613-8f49-c9d627611dc3" xlink:href="msif-20260630.xsd#msif_InvestmentTerm"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentTerm_019e21fb-1deb-7613-8f49-c9d627611dc3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyNumberOfPortfolioCompanies_019e21fb-1deb-7fe2-ba54-ac297c8a82d2" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyNumberOfPortfolioCompanies"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentCompanyNumberOfPortfolioCompanies_019e21fb-1deb-7fe2-ba54-ac297c8a82d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-708a-8579-3b8ae49d666e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-708a-8579-3b8ae49d666e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1deb-799f-a037-983f5c17c95d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtCost"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1deb-799f-a037-983f5c17c95d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7d51-86bd-b5542924b84e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7d51-86bd-b5542924b84e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyNumberOfPortfolioInvestmentsEntities_019e21fb-1deb-797d-840b-a5d4e28b6693" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyNumberOfPortfolioInvestmentsEntities"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentCompanyNumberOfPortfolioInvestmentsEntities_019e21fb-1deb-797d-840b-a5d4e28b6693" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyNumberOfPortfolioInvestmentsInvestmentManagers_019e21fb-1deb-70dd-835a-aef880c54eec" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyNumberOfPortfolioInvestmentsInvestmentManagers"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentCompanyNumberOfPortfolioInvestmentsInvestmentManagers_019e21fb-1deb-70dd-835a-aef880c54eec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyAnnualizedTotalReturn_019e21fb-1deb-7fa3-a24f-af38f2dc306d" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyAnnualizedTotalReturn"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentCompanyAnnualizedTotalReturn_019e21fb-1deb-7fa3-a24f-af38f2dc306d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyAchievedTotalReturn_019e21fb-1deb-77c6-8e5b-b6a6449ea753" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyAchievedTotalReturn"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019e21fb-1deb-7096-841b-4252bf3c3e39" xlink:to="loc_msif_InvestmentCompanyAchievedTotalReturn_019e21fb-1deb-77c6-8e5b-b6a6449ea753" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofInvestmentsDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofInvestmentsDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONScheduleofInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-74f0-838e-005f4b1b9a90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SummaryOfInvestmentHoldingsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-74f0-838e-005f4b1b9a90" xlink:to="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-7cca-8e7a-758c2662702a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:to="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-7cca-8e7a-758c2662702a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7c66-828c-b8e6338a22fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeAxis_019e21fb-1deb-7cca-8e7a-758c2662702a" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7c66-828c-b8e6338a22fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-78f9-a6df-8205b09501b9" xlink:href="msif-20260630.xsd#msif_PrivateLoanPortfolioMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7c66-828c-b8e6338a22fc" xlink:to="loc_msif_PrivateLoanPortfolioMember_019e21fb-1deb-78f9-a6df-8205b09501b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-74f5-bc94-511eeefa0526" xlink:href="msif-20260630.xsd#msif_LowerMiddleMarketPortfolioMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1deb-7c66-828c-b8e6338a22fc" xlink:to="loc_msif_LowerMiddleMarketPortfolioMember_019e21fb-1deb-74f5-bc94-511eeefa0526" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-726d-9a92-19678cfdec61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-726d-9a92-19678cfdec61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7e66-8fa7-7ddee737182c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-726d-9a92-19678cfdec61" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7e66-8fa7-7ddee737182c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7496-9e90-6a86456b0706" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtCostMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7e66-8fa7-7ddee737182c" xlink:to="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7496-9e90-6a86456b0706" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-74a7-ba97-582eca11adcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-74a7-ba97-582eca11adcf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7b82-9045-2d8c81b385c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-74a7-ba97-582eca11adcf" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7b82-9045-2d8c81b385c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-785f-9161-75a45693cdf4" xlink:href="msif-20260630.xsd#msif_InvestmentTypeConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7b82-9045-2d8c81b385c5" xlink:to="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-785f-9161-75a45693cdf4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7c9d-bcd6-62fdcbac8659" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7c9d-bcd6-62fdcbac8659" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7e71-b991-ebced1eb65bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7c9d-bcd6-62fdcbac8659" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7e71-b991-ebced1eb65bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-7d00-bcef-236b134667e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7e71-b991-ebced1eb65bd" xlink:to="loc_us-gaap_DebtSecuritiesMember_019e21fb-1deb-7d00-bcef-236b134667e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-7708-8ca0-9392e7d590f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7e71-b991-ebced1eb65bd" xlink:to="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-7708-8ca0-9392e7d590f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtSecuritiesFirstLienMember_019e21fb-1deb-7488-a924-36bf010b1028" xlink:href="msif-20260630.xsd#msif_DebtSecuritiesFirstLienMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-7e71-b991-ebced1eb65bd" xlink:to="loc_msif_DebtSecuritiesFirstLienMember_019e21fb-1deb-7488-a924-36bf010b1028" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentPerformanceStatusAxis_019e21fb-1deb-75e8-bf06-5b5b2f976550" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentPerformanceStatusAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:to="loc_us-gaap_FinancialInstrumentPerformanceStatusAxis_019e21fb-1deb-75e8-bf06-5b5b2f976550" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentPerformanceStatusDomain_019e21fb-1deb-7a43-970a-82daf0f2dd2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentPerformanceStatusDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentPerformanceStatusAxis_019e21fb-1deb-75e8-bf06-5b5b2f976550" xlink:to="loc_us-gaap_FinancialInstrumentPerformanceStatusDomain_019e21fb-1deb-7a43-970a-82daf0f2dd2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonperformingFinancingReceivableMember_019e21fb-1deb-78fe-b4bd-175333348455" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonperformingFinancingReceivableMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentPerformanceStatusDomain_019e21fb-1deb-7a43-970a-82daf0f2dd2a" xlink:to="loc_us-gaap_NonperformingFinancingReceivableMember_019e21fb-1deb-78fe-b4bd-175333348455" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SummaryOfInvestmentHoldingsLineItems"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsTable_019e21fb-1deb-7214-8fd2-02e55af6049b" xlink:to="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyNumberOfPortfolioCompanies_019e21fb-1deb-74cf-ae3f-051d432401e9" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyNumberOfPortfolioCompanies"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_msif_InvestmentCompanyNumberOfPortfolioCompanies_019e21fb-1deb-74cf-ae3f-051d432401e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-715a-ab7c-e2291d38f761" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1deb-715a-ab7c-e2291d38f761" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1deb-7c94-8258-3428557587c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_us-gaap_InvestmentOwnedAtCost_019e21fb-1deb-7c94-8258-3428557587c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7bb3-b2ae-5cecbe4719e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7bb3-b2ae-5cecbe4719e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRate_019e21fb-1deb-7a1f-9f6f-27819b6370bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRate"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_us-gaap_InvestmentInterestRate_019e21fb-1deb-7a1f-9f6f-27819b6370bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyAverageEarningsBeforeInterestTaxesDepreciationAndAmortization_019e21fb-1deb-71e5-952b-4c9ac464692b" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyAverageEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_msif_InvestmentCompanyAverageEarningsBeforeInterestTaxesDepreciationAndAmortization_019e21fb-1deb-71e5-952b-4c9ac464692b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyAverageFullyDilutedEquityOwnershipPercentage_019e21fb-1deb-7568-b684-5da507ff9892" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyAverageFullyDilutedEquityOwnershipPercentage"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_msif_InvestmentCompanyAverageFullyDilutedEquityOwnershipPercentage_019e21fb-1deb-7568-b684-5da507ff9892" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyNumberOfCompaniesWithinPortfolioExcludedFromEBITDACalculation_019e21fb-1deb-7c81-a34e-15938be490e4" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyNumberOfCompaniesWithinPortfolioExcludedFromEBITDACalculation"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SummaryOfInvestmentHoldingsLineItems_019e21fb-1deb-7131-8be7-412cd5a7b04b" xlink:to="loc_msif_InvestmentCompanyNumberOfCompaniesWithinPortfolioExcludedFromEBITDACalculation_019e21fb-1deb-7c81-a34e-15938be490e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyTypeofInvestmentDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyTypeofInvestmentDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyTypeofInvestmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-739b-a3e2-f350152c4cdf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-71e8-ac41-109e4c696d94" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-739b-a3e2-f350152c4cdf" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-71e8-ac41-109e4c696d94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-75a5-b70d-27179ffada40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-71e8-ac41-109e4c696d94" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-75a5-b70d-27179ffada40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7224-9fa6-616e0b277c7f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-75a5-b70d-27179ffada40" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7224-9fa6-616e0b277c7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7638-8f73-adf9308dbe6f" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtCostMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7224-9fa6-616e0b277c7f" xlink:to="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7638-8f73-adf9308dbe6f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7b32-b485-dfa294236dce" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtFairValueMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7224-9fa6-616e0b277c7f" xlink:to="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7b32-b485-dfa294236dce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-769f-bcf5-defa2f7a01ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-71e8-ac41-109e4c696d94" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-769f-bcf5-defa2f7a01ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-78a5-b67d-e0678a0313f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-769f-bcf5-defa2f7a01ef" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-78a5-b67d-e0678a0313f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-7d19-838c-585a33a85940" xlink:href="msif-20260630.xsd#msif_InvestmentTypeConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-78a5-b67d-e0678a0313f6" xlink:to="loc_msif_InvestmentTypeConcentrationRiskMember_019e21fb-1deb-7d19-838c-585a33a85940" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7783-b49e-d17be6d72107" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-71e8-ac41-109e4c696d94" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7783-b49e-d17be6d72107" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-70c8-986d-f02cad9503d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019e21fb-1deb-7783-b49e-d17be6d72107" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-70c8-986d-f02cad9503d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtSecuritiesFirstLienMember_019e21fb-1deb-7bbf-917d-34eacc85fa31" xlink:href="msif-20260630.xsd#msif_DebtSecuritiesFirstLienMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-70c8-986d-f02cad9503d5" xlink:to="loc_msif_DebtSecuritiesFirstLienMember_019e21fb-1deb-7bbf-917d-34eacc85fa31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-70f6-844f-3c2dd3ae720b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-70c8-986d-f02cad9503d5" xlink:to="loc_us-gaap_EquitySecuritiesMember_019e21fb-1deb-70f6-844f-3c2dd3ae720b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtSecuritiesSecondLienMember_019e21fb-1deb-7617-832a-af28e058bf16" xlink:href="msif-20260630.xsd#msif_DebtSecuritiesSecondLienMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-70c8-986d-f02cad9503d5" xlink:to="loc_msif_DebtSecuritiesSecondLienMember_019e21fb-1deb-7617-832a-af28e058bf16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_EquityWarrantMember_019e21fb-1deb-7774-98c0-5040e51f15c5" xlink:href="msif-20260630.xsd#msif_EquityWarrantMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-70c8-986d-f02cad9503d5" xlink:to="loc_msif_EquityWarrantMember_019e21fb-1deb-7774-98c0-5040e51f15c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-71e3-84f2-aa281f9cdfde" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAggregatedInvestmentsMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019e21fb-1deb-70c8-986d-f02cad9503d5" xlink:to="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1deb-71e3-84f2-aa281f9cdfde" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-71ac-9835-8a243ad56168" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-71e8-ac41-109e4c696d94" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-71ac-9835-8a243ad56168" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7e71-88a1-f72119568103" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-71ac-9835-8a243ad56168" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7e71-88a1-f72119568103" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyGeographicalRegionsDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyGeographicalRegionsDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyGeographicalRegionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-77ff-9ad9-86c1925b1c96" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7b67-86ca-0b1c5b705836" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-77ff-9ad9-86c1925b1c96" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7b67-86ca-0b1c5b705836" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019e21fb-1deb-762b-b31c-f0e711600678" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7b67-86ca-0b1c5b705836" xlink:to="loc_srt_StatementGeographicalAxis_019e21fb-1deb-762b-b31c-f0e711600678" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_019e21fb-1deb-762b-b31c-f0e711600678" xlink:to="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WestRegionMember_019e21fb-1deb-79fb-b64d-872be83a13ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WestRegionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:to="loc_us-gaap_WestRegionMember_019e21fb-1deb-79fb-b64d-872be83a13ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MidwestRegionMember_019e21fb-1deb-71da-98fd-0311f34026f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MidwestRegionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:to="loc_us-gaap_MidwestRegionMember_019e21fb-1deb-71da-98fd-0311f34026f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoutheastRegionMember_019e21fb-1deb-7031-b386-fdeb99925c7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoutheastRegionMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:to="loc_us-gaap_SoutheastRegionMember_019e21fb-1deb-7031-b386-fdeb99925c7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SouthwestRegionMember_019e21fb-1deb-7df5-bfd4-3caaad7828ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SouthwestRegionMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:to="loc_us-gaap_SouthwestRegionMember_019e21fb-1deb-7df5-bfd4-3caaad7828ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NortheastRegionMember_019e21fb-1deb-799f-925d-d6f076dbd861" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NortheastRegionMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:to="loc_us-gaap_NortheastRegionMember_019e21fb-1deb-799f-925d-d6f076dbd861" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CA_019e21fb-1deb-78ab-a26c-af5adb10d4ea" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_CA"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:to="loc_country_CA_019e21fb-1deb-78ab-a26c-af5adb10d4ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonUsMember_019e21fb-1deb-7e46-8b6b-c32827b02420" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonUsMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1deb-780c-95fe-e369417a2969" xlink:to="loc_us-gaap_NonUsMember_019e21fb-1deb-7e46-8b6b-c32827b02420" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7ad5-963f-61acb787d9de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7b67-86ca-0b1c5b705836" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7ad5-963f-61acb787d9de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7456-a062-a8750f334086" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7ad5-963f-61acb787d9de" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7456-a062-a8750f334086" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7ebb-94db-e0b373b7100f" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtCostMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7456-a062-a8750f334086" xlink:to="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-7ebb-94db-e0b373b7100f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7dda-a628-6ec6734a607c" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtFairValueMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7456-a062-a8750f334086" xlink:to="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7dda-a628-6ec6734a607c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-74d4-a5dd-a73aa92576b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7b67-86ca-0b1c5b705836" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-74d4-a5dd-a73aa92576b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7183-8a43-93d7b433f845" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-74d4-a5dd-a73aa92576b9" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7183-8a43-93d7b433f845" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember_019e21fb-1deb-7e96-ba84-380a925cfaee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeographicConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-7183-8a43-93d7b433f845" xlink:to="loc_us-gaap_GeographicConcentrationRiskMember_019e21fb-1deb-7e96-ba84-380a925cfaee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-7332-9f26-a7246fcbf240" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7b67-86ca-0b1c5b705836" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-7332-9f26-a7246fcbf240" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-704f-8cf0-8f5505ddd84c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-7332-9f26-a7246fcbf240" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-704f-8cf0-8f5505ddd84c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyIndustrySectorDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyIndustrySectorDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FAIRVALUEHIERARCHYFORINVESTMENTSPORTFOLIOCOMPOSITIONPercentageofPortfolioInvestmentsbyIndustrySectorDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-710a-bf8e-5af8b7468bde" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7ffb-b118-63e8a4848811" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_019e21fb-1deb-710a-bf8e-5af8b7468bde" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7ffb-b118-63e8a4848811" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7b70-88a2-1287ffdaaa2d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7ffb-b118-63e8a4848811" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7b70-88a2-1287ffdaaa2d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7a1b-ad34-f141def749b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019e21fb-1deb-7b70-88a2-1287ffdaaa2d" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7a1b-ad34-f141def749b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-78be-a0e9-4e1bb7c2de04" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtCostMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7a1b-ad34-f141def749b5" xlink:to="loc_msif_InvestmentOwnedAtCostMember_019e21fb-1deb-78be-a0e9-4e1bb7c2de04" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7f8c-b3e1-72b75a1e62f2" xlink:href="msif-20260630.xsd#msif_InvestmentOwnedAtFairValueMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019e21fb-1deb-7a1b-ad34-f141def749b5" xlink:to="loc_msif_InvestmentOwnedAtFairValueMember_019e21fb-1deb-7f8c-b3e1-72b75a1e62f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-768f-89be-31a05e8e6e02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7ffb-b118-63e8a4848811" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-768f-89be-31a05e8e6e02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-736d-91b3-28333ef1f496" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019e21fb-1deb-768f-89be-31a05e8e6e02" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-736d-91b3-28333ef1f496" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IndustryConcentrationRiskMember_019e21fb-1deb-72e3-b73c-bdaa55633c73" xlink:href="msif-20260630.xsd#msif_IndustryConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019e21fb-1deb-736d-91b3-28333ef1f496" xlink:to="loc_msif_IndustryConcentrationRiskMember_019e21fb-1deb-72e3-b73c-bdaa55633c73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesByIndustryAxis_019e21fb-1deb-79cd-b693-771977de584a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesByIndustryAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7ffb-b118-63e8a4848811" xlink:to="loc_us-gaap_EquitySecuritiesByIndustryAxis_019e21fb-1deb-79cd-b693-771977de584a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesIndustryMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesByIndustryAxis_019e21fb-1deb-79cd-b693-771977de584a" xlink:to="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ElectricalEquipmentSectorMember_019e21fb-1deb-7002-b548-1521072fe006" xlink:href="msif-20260630.xsd#msif_ElectricalEquipmentSectorMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_ElectricalEquipmentSectorMember_019e21fb-1deb-7002-b548-1521072fe006" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ConstructionAndEngineeringSectorMember_019e21fb-1deb-7d3e-956d-f99b191b1f5e" xlink:href="msif-20260630.xsd#msif_ConstructionAndEngineeringSectorMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_ConstructionAndEngineeringSectorMember_019e21fb-1deb-7d3e-956d-f99b191b1f5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MachinerySectorMember_019e21fb-1deb-7cf6-8fe4-d42ed13e22b3" xlink:href="msif-20260630.xsd#msif_MachinerySectorMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_MachinerySectorMember_019e21fb-1deb-7cf6-8fe4-d42ed13e22b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CommercialServicesAndSuppliesSectorMember_019e21fb-1deb-77bb-84e1-9ed41178de2c" xlink:href="msif-20260630.xsd#msif_CommercialServicesAndSuppliesSectorMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_CommercialServicesAndSuppliesSectorMember_019e21fb-1deb-77bb-84e1-9ed41178de2c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ProfessionalServicesSectorMember_019e21fb-1deb-764b-b194-0e53b401591f" xlink:href="msif-20260630.xsd#msif_ProfessionalServicesSectorMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_ProfessionalServicesSectorMember_019e21fb-1deb-764b-b194-0e53b401591f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AerospaceAndDefenseSectorMember_019e21fb-1deb-7184-aacc-de530f22675c" xlink:href="msif-20260630.xsd#msif_AerospaceAndDefenseSectorMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_AerospaceAndDefenseSectorMember_019e21fb-1deb-7184-aacc-de530f22675c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DistributorsSectorMember_019e21fb-1deb-75dc-9500-d472a1094eb6" xlink:href="msif-20260630.xsd#msif_DistributorsSectorMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_DistributorsSectorMember_019e21fb-1deb-75dc-9500-d472a1094eb6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InternetSoftwareAndServicesSectorMember_019e21fb-1deb-74b7-a488-038bd3063805" xlink:href="msif-20260630.xsd#msif_InternetSoftwareAndServicesSectorMember"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_InternetSoftwareAndServicesSectorMember_019e21fb-1deb-74b7-a488-038bd3063805" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DiversifiedConsumerServicesSectorMember_019e21fb-1deb-77dc-bdc6-99f95a99f0e1" xlink:href="msif-20260630.xsd#msif_DiversifiedConsumerServicesSectorMember"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_DiversifiedConsumerServicesSectorMember_019e21fb-1deb-77dc-bdc6-99f95a99f0e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ContainersAndPackagingSectorMember_019e21fb-1deb-7663-932e-a598f9686212" xlink:href="msif-20260630.xsd#msif_ContainersAndPackagingSectorMember"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_ContainersAndPackagingSectorMember_019e21fb-1deb-7663-932e-a598f9686212" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ITServicesSectorMember_019e21fb-1deb-70ee-ae13-16da5ced4f76" xlink:href="msif-20260630.xsd#msif_ITServicesSectorMember"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_ITServicesSectorMember_019e21fb-1deb-70ee-ae13-16da5ced4f76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_HealthCareProvidersAndServicesSectorMember_019e21fb-1deb-7306-9645-c29bb92e9cb4" xlink:href="msif-20260630.xsd#msif_HealthCareProvidersAndServicesSectorMember"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_HealthCareProvidersAndServicesSectorMember_019e21fb-1deb-7306-9645-c29bb92e9cb4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LeisureEquipmentAndProductsSectorMember_019e21fb-1deb-7344-9b94-3449c80eb4bc" xlink:href="msif-20260630.xsd#msif_LeisureEquipmentAndProductsSectorMember"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_LeisureEquipmentAndProductsSectorMember_019e21fb-1deb-7344-9b94-3449c80eb4bc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ChemicalsSectorMember_019e21fb-1deb-7fe2-bd7e-a5649d118cbc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ChemicalsSectorMember"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_us-gaap_ChemicalsSectorMember_019e21fb-1deb-7fe2-bd7e-a5649d118cbc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AutoComponentsSectorMember_019e21fb-1deb-77ed-9ad2-d9edb19682ae" xlink:href="msif-20260630.xsd#msif_AutoComponentsSectorMember"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_AutoComponentsSectorMember_019e21fb-1deb-77ed-9ad2-d9edb19682ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_HotelsRestaurantsAndLeisureSectorMember_019e21fb-1deb-794d-9365-c1e0b7621ae6" xlink:href="msif-20260630.xsd#msif_HotelsRestaurantsAndLeisureSectorMember"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_HotelsRestaurantsAndLeisureSectorMember_019e21fb-1deb-794d-9365-c1e0b7621ae6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AirFreightAndLogisticsSectorMember_019e21fb-1deb-731e-8366-44be203fa561" xlink:href="msif-20260630.xsd#msif_AirFreightAndLogisticsSectorMember"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_AirFreightAndLogisticsSectorMember_019e21fb-1deb-731e-8366-44be203fa561" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_TextilesApparelAndLuxuryGoodsSectorMember_019e21fb-1deb-7640-bcd9-6d6cdb7e56b7" xlink:href="msif-20260630.xsd#msif_TextilesApparelAndLuxuryGoodsSectorMember"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_TextilesApparelAndLuxuryGoodsSectorMember_019e21fb-1deb-7640-bcd9-6d6cdb7e56b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SpecialtyRetailSectorMember_019e21fb-1deb-73ac-be9e-5d6e8aa1a87d" xlink:href="msif-20260630.xsd#msif_SpecialtyRetailSectorMember"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_SpecialtyRetailSectorMember_019e21fb-1deb-73ac-be9e-5d6e8aa1a87d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CommunicationsEquipmentSectorMember_019e21fb-1deb-7095-b2d3-8e59568d4188" xlink:href="msif-20260630.xsd#msif_CommunicationsEquipmentSectorMember"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_CommunicationsEquipmentSectorMember_019e21fb-1deb-7095-b2d3-8e59568d4188" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ComputersAndPeripheralsSectorMember_019e21fb-1deb-7ce4-8c3a-5ccaeaa88a25" xlink:href="msif-20260630.xsd#msif_ComputersAndPeripheralsSectorMember"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_ComputersAndPeripheralsSectorMember_019e21fb-1deb-7ce4-8c3a-5ccaeaa88a25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_EnergyEquipmentAndServicesSectorMember_019e21fb-1deb-74c3-b968-30f336a099f1" xlink:href="msif-20260630.xsd#msif_EnergyEquipmentAndServicesSectorMember"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_EnergyEquipmentAndServicesSectorMember_019e21fb-1deb-74c3-b968-30f336a099f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SoftwareSectorMember_019e21fb-1deb-7cd0-b4c3-521905b72fe0" xlink:href="msif-20260630.xsd#msif_SoftwareSectorMember"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_SoftwareSectorMember_019e21fb-1deb-7cd0-b4c3-521905b72fe0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MarineSectorMember_019e21fb-1deb-7414-898d-bd66bc2f0382" xlink:href="msif-20260630.xsd#msif_MarineSectorMember"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_MarineSectorMember_019e21fb-1deb-7414-898d-bd66bc2f0382" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MediaSectorMember_019e21fb-1deb-7295-aa75-00e03cea50a4" xlink:href="msif-20260630.xsd#msif_MediaSectorMember"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_MediaSectorMember_019e21fb-1deb-7295-aa75-00e03cea50a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InternetAndCatalogRetailSectorMember_019e21fb-1deb-782b-a8d2-88745c06800b" xlink:href="msif-20260630.xsd#msif_InternetAndCatalogRetailSectorMember"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_InternetAndCatalogRetailSectorMember_019e21fb-1deb-782b-a8d2-88745c06800b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_TradingCompaniesAndDistributorsSectorMember_019e21fb-1deb-757c-ad29-96c9c2e0e0b8" xlink:href="msif-20260630.xsd#msif_TradingCompaniesAndDistributorsSectorMember"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_TradingCompaniesAndDistributorsSectorMember_019e21fb-1deb-757c-ad29-96c9c2e0e0b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_FoodAndStaplesRetailingSectorMember_019e21fb-1deb-7b23-b01b-4a1872fe754a" xlink:href="msif-20260630.xsd#msif_FoodAndStaplesRetailingSectorMember"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_FoodAndStaplesRetailingSectorMember_019e21fb-1deb-7b23-b01b-4a1872fe754a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_HouseholdProductsSectorMember_019e21fb-1deb-78c2-a1e7-72942491cc20" xlink:href="msif-20260630.xsd#msif_HouseholdProductsSectorMember"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_HouseholdProductsSectorMember_019e21fb-1deb-78c2-a1e7-72942491cc20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DiversifiedFinancialServicesSectorMember_019e21fb-1deb-7de4-9655-8cbdf43c19ea" xlink:href="msif-20260630.xsd#msif_DiversifiedFinancialServicesSectorMember"/>
    <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_DiversifiedFinancialServicesSectorMember_019e21fb-1deb-7de4-9655-8cbdf43c19ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_BeveragesSectorMember_019e21fb-1deb-7954-b8cc-7ac8bd80c83b" xlink:href="msif-20260630.xsd#msif_BeveragesSectorMember"/>
    <link:presentationArc order="31" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_BeveragesSectorMember_019e21fb-1deb-7954-b8cc-7ac8bd80c83b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_OtherSectorMember_019e21fb-1deb-768c-9b0d-6616777aa7cc" xlink:href="msif-20260630.xsd#msif_OtherSectorMember"/>
    <link:presentationArc order="32" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquitySecuritiesIndustryMember_019e21fb-1deb-7f49-a7cc-034304686ed8" xlink:to="loc_msif_OtherSectorMember_019e21fb-1deb-768c-9b0d-6616777aa7cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-71a9-8769-348bb8b8c61f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019e21fb-1deb-7ffb-b118-63e8a4848811" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-71a9-8769-348bb8b8c61f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7c87-97e4-c5d9f90a0168" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019e21fb-1deb-71a9-8769-348bb8b8c61f" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019e21fb-1deb-7c87-97e4-c5d9f90a0168" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTScheduleofDebtDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTScheduleofDebtDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTScheduleofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-757a-a024-92c38ba3f4a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-731d-94a4-df2498c42aac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-757a-a024-92c38ba3f4a0" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-731d-94a4-df2498c42aac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7ba5-bd78-b2b1723c0539" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-731d-94a4-df2498c42aac" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7ba5-bd78-b2b1723c0539" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7ded-94ec-ae902d133afb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7ba5-bd78-b2b1723c0539" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7ded-94ec-ae902d133afb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SPVFacilityMember_019e21fb-1deb-73ee-86ec-f3dd67f8be17" xlink:href="msif-20260630.xsd#msif_SPVFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7ded-94ec-ae902d133afb" xlink:to="loc_msif_SPVFacilityMember_019e21fb-1deb-73ee-86ec-f3dd67f8be17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CorporateFacilityMember_019e21fb-1deb-7d4e-a662-8dc0599ccde4" xlink:href="msif-20260630.xsd#msif_CorporateFacilityMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7ded-94ec-ae902d133afb" xlink:to="loc_msif_CorporateFacilityMember_019e21fb-1deb-7d4e-a662-8dc0599ccde4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MainStreetFacilityMember_019e4179-3ded-718a-8aae-73c9f05c4b63" xlink:href="msif-20260630.xsd#msif_MainStreetFacilityMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7ded-94ec-ae902d133afb" xlink:to="loc_msif_MainStreetFacilityMember_019e4179-3ded-718a-8aae-73c9f05c4b63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_October2026NotesMember_019e21fb-1deb-76ea-aa29-21a7995a6a5a" xlink:href="msif-20260630.xsd#msif_October2026NotesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7ded-94ec-ae902d133afb" xlink:to="loc_msif_October2026NotesMember_019e21fb-1deb-76ea-aa29-21a7995a6a5a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_May2029NotesMember_019e21fb-1deb-794a-9c0a-764498ff36a7" xlink:href="msif-20260630.xsd#msif_May2029NotesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7ded-94ec-ae902d133afb" xlink:to="loc_msif_May2029NotesMember_019e21fb-1deb-794a-9c0a-764498ff36a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-796b-8f10-875629c9dd51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-731d-94a4-df2498c42aac" xlink:to="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-796b-8f10-875629c9dd51" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7c06-847d-2ebe84432aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-796b-8f10-875629c9dd51" xlink:to="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7c06-847d-2ebe84432aaa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-76c0-8d79-93dd0188451a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7c06-847d-2ebe84432aaa" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-76c0-8d79-93dd0188451a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7ecf-a34c-262aadba9c13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-731d-94a4-df2498c42aac" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7ecf-a34c-262aadba9c13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-75f6-8d7d-2a4c7d7d2985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7ecf-a34c-262aadba9c13" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-75f6-8d7d-2a4c7d7d2985" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7078-85ef-26199083cc1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-75f6-8d7d-2a4c7d7d2985" xlink:to="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7078-85ef-26199083cc1e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-771d-86e8-ff39525b9c7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-75f6-8d7d-2a4c7d7d2985" xlink:to="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-771d-86e8-ff39525b9c7e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7627-8263-a153c2d14c47" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-731d-94a4-df2498c42aac" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7627-8263-a153c2d14c47" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019e21fb-1deb-7777-acae-a925328b76b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7627-8263-a153c2d14c47" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019e21fb-1deb-7777-acae-a925328b76b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019e21fb-1deb-7bca-a722-25981e63363e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7627-8263-a153c2d14c47" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019e21fb-1deb-7bca-a722-25981e63363e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e21fb-1deb-7b6d-9221-12424864171a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7627-8263-a153c2d14c47" xlink:to="loc_us-gaap_LongTermDebt_019e21fb-1deb-7b6d-9221-12424864171a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_019e21fb-1deb-7329-a041-670cb413f4dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7627-8263-a153c2d14c47" xlink:to="loc_us-gaap_DebtInstrumentFairValue_019e21fb-1deb-7329-a041-670cb413f4dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTScheduleofInterestExpenseDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTScheduleofInterestExpenseDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTScheduleofInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7174-9589-4fcb158ae814" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ac4-a2ca-cb7930074cc4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7174-9589-4fcb158ae814" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ac4-a2ca-cb7930074cc4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7c66-b106-17d80255080e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ac4-a2ca-cb7930074cc4" xlink:to="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7c66-b106-17d80255080e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7a41-b6fa-a54032862ad5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7c66-b106-17d80255080e" xlink:to="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7a41-b6fa-a54032862ad5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-7b1c-ba6b-8241a4f8cb86" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7a41-b6fa-a54032862ad5" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-7b1c-ba6b-8241a4f8cb86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7b78-af96-a9ad5f546469" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ac4-a2ca-cb7930074cc4" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7b78-af96-a9ad5f546469" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-77c9-8fb8-e555def608ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7b78-af96-a9ad5f546469" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-77c9-8fb8-e555def608ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SPVFacilityMember_019e21fb-1deb-763e-8679-5ce8b8567bda" xlink:href="msif-20260630.xsd#msif_SPVFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-77c9-8fb8-e555def608ac" xlink:to="loc_msif_SPVFacilityMember_019e21fb-1deb-763e-8679-5ce8b8567bda" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CorporateFacilityMember_019e21fb-1deb-7d90-87c6-a6e297bf30f8" xlink:href="msif-20260630.xsd#msif_CorporateFacilityMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-77c9-8fb8-e555def608ac" xlink:to="loc_msif_CorporateFacilityMember_019e21fb-1deb-7d90-87c6-a6e297bf30f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MainStreetFacilityMember_019e21fb-1deb-7e55-8925-361539d0db25" xlink:href="msif-20260630.xsd#msif_MainStreetFacilityMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-77c9-8fb8-e555def608ac" xlink:to="loc_msif_MainStreetFacilityMember_019e21fb-1deb-7e55-8925-361539d0db25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_October2026NotesMember_019e21fb-1deb-7e9f-bb61-77db04da851d" xlink:href="msif-20260630.xsd#msif_October2026NotesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-77c9-8fb8-e555def608ac" xlink:to="loc_msif_October2026NotesMember_019e21fb-1deb-7e9f-bb61-77db04da851d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_May2029NotesMember_019e21fb-1deb-7c11-b5f2-d7957a5bf292" xlink:href="msif-20260630.xsd#msif_May2029NotesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-77c9-8fb8-e555def608ac" xlink:to="loc_msif_May2029NotesMember_019e21fb-1deb-7c11-b5f2-d7957a5bf292" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-79ec-9713-a70fa941e700" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ac4-a2ca-cb7930074cc4" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-79ec-9713-a70fa941e700" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-72fe-8310-7da20456ba13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-79ec-9713-a70fa941e700" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-72fe-8310-7da20456ba13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7b66-bdbf-b1f9150f678e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-72fe-8310-7da20456ba13" xlink:to="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7b66-bdbf-b1f9150f678e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-7022-ab5a-297e2b53faa6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-72fe-8310-7da20456ba13" xlink:to="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-7022-ab5a-297e2b53faa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7769-9f18-1dd115c24c7f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ac4-a2ca-cb7930074cc4" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7769-9f18-1dd115c24c7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_019e21fb-1deb-7f24-b02e-a7463f594a46" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7769-9f18-1dd115c24c7f" xlink:to="loc_us-gaap_InterestExpenseDebt_019e21fb-1deb-7f24-b02e-a7463f594a46" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTScheduleofAverageAmountofTotalBorrowingsOutstandingandOverallWeightedAverageEffectiveInterestRateDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTScheduleofAverageAmountofTotalBorrowingsOutstandingandOverallWeightedAverageEffectiveInterestRateDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTScheduleofAverageAmountofTotalBorrowingsOutstandingandOverallWeightedAverageEffectiveInterestRateDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7e8e-9282-c3ce499dc1e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7e83-88bd-a94d4386afb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7e8e-9282-c3ce499dc1e7" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7e83-88bd-a94d4386afb8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e21fb-1deb-7669-9474-6ffa97c514c8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7e83-88bd-a94d4386afb8" xlink:to="loc_srt_RangeAxis_019e21fb-1deb-7669-9474-6ffa97c514c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e21fb-1deb-7ba9-b6a0-1867a83f0cf1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019e21fb-1deb-7669-9474-6ffa97c514c8" xlink:to="loc_srt_RangeMember_019e21fb-1deb-7ba9-b6a0-1867a83f0cf1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember_019e21fb-1deb-7413-94f3-ed98ae546b89" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_WeightedAverageMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-7ba9-b6a0-1867a83f0cf1" xlink:to="loc_srt_WeightedAverageMember_019e21fb-1deb-7413-94f3-ed98ae546b89" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-765a-8b38-343c1e9d6e38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7e83-88bd-a94d4386afb8" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-765a-8b38-343c1e9d6e38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAverageAmountOutstanding_019e21fb-1deb-73dc-a1ca-a8f4240fb9a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtAverageAmountOutstanding"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-765a-8b38-343c1e9d6e38" xlink:to="loc_us-gaap_LongTermDebtAverageAmountOutstanding_019e21fb-1deb-73dc-a1ca-a8f4240fb9a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019e21fb-1deb-7291-8af0-d49df7be1918" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-765a-8b38-343c1e9d6e38" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019e21fb-1deb-7291-8af0-d49df7be1918" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTSPVFacilityNarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTSPVFacilityNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTSPVFacilityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7bd4-8e47-3e41d5133f94" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7bfb-8f01-9a5f40d72d9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7bd4-8e47-3e41d5133f94" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7bfb-8f01-9a5f40d72d9c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7d2e-a625-89febb15df65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7bfb-8f01-9a5f40d72d9c" xlink:to="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7d2e-a625-89febb15df65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7938-8036-8bd64e3cfef1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7d2e-a625-89febb15df65" xlink:to="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7938-8036-8bd64e3cfef1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-777a-9deb-eee687619d10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7938-8036-8bd64e3cfef1" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-777a-9deb-eee687619d10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7e8c-b802-7121ce1957a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7bfb-8f01-9a5f40d72d9c" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7e8c-b802-7121ce1957a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7bf5-aae9-c21d5d20fd1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7e8c-b802-7121ce1957a0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7bf5-aae9-c21d5d20fd1a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SPVFacilityMember_019e21fb-1deb-7da2-aa75-f8598cef25dc" xlink:href="msif-20260630.xsd#msif_SPVFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7bf5-aae9-c21d5d20fd1a" xlink:to="loc_msif_SPVFacilityMember_019e21fb-1deb-7da2-aa75-f8598cef25dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-78bf-8b1c-611a64e60642" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7bfb-8f01-9a5f40d72d9c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-78bf-8b1c-611a64e60642" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7ba9-9e34-83be00525d42" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-78bf-8b1c-611a64e60642" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7ba9-9e34-83be00525d42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7997-80fe-883d146d4d82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7ba9-9e34-83be00525d42" xlink:to="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7997-80fe-883d146d4d82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7bfb-8f01-9a5f40d72d9c" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e21fb-1deb-715b-8687-7518e4b649cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e21fb-1deb-715b-8687-7518e4b649cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LineOfCreditFacilityMaximumBorrowingCapacityIncludingAccordionFeature_019e21fb-1deb-7a2c-9c76-abed55ce4907" xlink:href="msif-20260630.xsd#msif_LineOfCreditFacilityMaximumBorrowingCapacityIncludingAccordionFeature"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:to="loc_msif_LineOfCreditFacilityMaximumBorrowingCapacityIncludingAccordionFeature_019e21fb-1deb-7a2c-9c76-abed55ce4907" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e21fb-1deb-7713-9fbd-6f388d7da37f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e21fb-1deb-7713-9fbd-6f388d7da37f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019e21fb-1deb-791f-8168-ec50756e9998" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019e21fb-1deb-791f-8168-ec50756e9998" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e21fb-1deb-78d0-8051-0356c79e7f53" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e21fb-1deb-78d0-8051-0356c79e7f53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019e21fb-1deb-7d6a-bc6f-54e6373e8259" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7270-b520-e3099dd0df95" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019e21fb-1deb-7d6a-bc6f-54e6373e8259" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTCorporateFacilityNarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTCorporateFacilityNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTCorporateFacilityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-70bb-aebd-c34315f19812" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-70bb-aebd-c34315f19812" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-756c-997d-ec3e82f008f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:to="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-756c-997d-ec3e82f008f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7bbd-b418-76013c451f5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-756c-997d-ec3e82f008f9" xlink:to="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7bbd-b418-76013c451f5c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-7c60-9019-36b4202d26aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-7bbd-b418-76013c451f5c" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-7c60-9019-36b4202d26aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-789e-91f7-45623f149963" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-789e-91f7-45623f149963" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-73db-bb01-0be16c50ff95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-789e-91f7-45623f149963" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-73db-bb01-0be16c50ff95" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7d0e-9872-6c879d2a09f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-73db-bb01-0be16c50ff95" xlink:to="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7d0e-9872-6c879d2a09f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-74eb-a609-de5bf045ccfc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-74eb-a609-de5bf045ccfc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-70f2-8804-670922801d8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-74eb-a609-de5bf045ccfc" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-70f2-8804-670922801d8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CorporateFacilityMember_019e21fb-1deb-76f7-90df-1d64760eb809" xlink:href="msif-20260630.xsd#msif_CorporateFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-70f2-8804-670922801d8f" xlink:to="loc_msif_CorporateFacilityMember_019e21fb-1deb-76f7-90df-1d64760eb809" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019e21fb-1deb-72a7-b391-7f968c238f3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:to="loc_us-gaap_VariableRateAxis_019e21fb-1deb-72a7-b391-7f968c238f3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019e21fb-1deb-7342-84c2-b7c33b51de85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableRateDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateAxis_019e21fb-1deb-72a7-b391-7f968c238f3c" xlink:to="loc_us-gaap_VariableRateDomain_019e21fb-1deb-7342-84c2-b7c33b51de85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019e21fb-1deb-7eb3-94d5-1c59407111d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredOvernightFinancingRateSofrMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_019e21fb-1deb-7342-84c2-b7c33b51de85" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019e21fb-1deb-7eb3-94d5-1c59407111d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BaseRateMember_019e21fb-1deb-7f25-b963-3e66adf2b49b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BaseRateMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_019e21fb-1deb-7342-84c2-b7c33b51de85" xlink:to="loc_us-gaap_BaseRateMember_019e21fb-1deb-7f25-b963-3e66adf2b49b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_FederalFundsRateMember_019e21fb-1deb-73eb-866b-8ad8976fc22c" xlink:href="msif-20260630.xsd#msif_FederalFundsRateMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_019e21fb-1deb-7342-84c2-b7c33b51de85" xlink:to="loc_msif_FederalFundsRateMember_019e21fb-1deb-73eb-866b-8ad8976fc22c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019e21fb-1deb-7343-8a16-c0fe3b0e2443" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:to="loc_srt_RangeAxis_019e21fb-1deb-7343-8a16-c0fe3b0e2443" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019e21fb-1deb-73b5-abb1-0ca6b349fb14" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_019e21fb-1deb-7343-8a16-c0fe3b0e2443" xlink:to="loc_srt_RangeMember_019e21fb-1deb-73b5-abb1-0ca6b349fb14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019e21fb-1deb-7069-8274-01007bd463c8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-73b5-abb1-0ca6b349fb14" xlink:to="loc_srt_MinimumMember_019e21fb-1deb-7069-8274-01007bd463c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019e21fb-1deb-71eb-a73d-694b96ee1fda" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_019e21fb-1deb-73b5-abb1-0ca6b349fb14" xlink:to="loc_srt_MaximumMember_019e21fb-1deb-71eb-a73d-694b96ee1fda" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtVariableRateComponentAxis_019e21fb-1deb-7bde-ada9-f14e979a861c" xlink:href="msif-20260630.xsd#msif_DebtVariableRateComponentAxis"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:to="loc_msif_DebtVariableRateComponentAxis_019e21fb-1deb-7bde-ada9-f14e979a861c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtVariableRateComponentDomain_019e21fb-1deb-7b88-baef-6c78049a77a0" xlink:href="msif-20260630.xsd#msif_DebtVariableRateComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_DebtVariableRateComponentAxis_019e21fb-1deb-7bde-ada9-f14e979a861c" xlink:to="loc_msif_DebtVariableRateComponentDomain_019e21fb-1deb-7b88-baef-6c78049a77a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtVariableRateComponentOneMember_019e21fb-1deb-7330-a216-1be2899cab57" xlink:href="msif-20260630.xsd#msif_DebtVariableRateComponentOneMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_DebtVariableRateComponentDomain_019e21fb-1deb-7b88-baef-6c78049a77a0" xlink:to="loc_msif_DebtVariableRateComponentOneMember_019e21fb-1deb-7330-a216-1be2899cab57" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtVariableRateComponentTwoMember_019e21fb-1deb-70c1-bbb6-43f5b37d5dc2" xlink:href="msif-20260630.xsd#msif_DebtVariableRateComponentTwoMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_DebtVariableRateComponentDomain_019e21fb-1deb-7b88-baef-6c78049a77a0" xlink:to="loc_msif_DebtVariableRateComponentTwoMember_019e21fb-1deb-70c1-bbb6-43f5b37d5dc2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-78fe-8bfa-42802dc1847e" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e21fb-1deb-7cf4-924c-b5264d6221f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e21fb-1deb-7cf4-924c-b5264d6221f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtInstrumentNumberOfLenders_019e21fb-1deb-7f24-8c69-eda48607ab4d" xlink:href="msif-20260630.xsd#msif_DebtInstrumentNumberOfLenders"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_msif_DebtInstrumentNumberOfLenders_019e21fb-1deb-7f24-8c69-eda48607ab4d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_LineOfCreditFacilityMaximumBorrowingCapacityIncludingAccordionFeature_019e21fb-1deb-7b76-8054-443e7d499ef0" xlink:href="msif-20260630.xsd#msif_LineOfCreditFacilityMaximumBorrowingCapacityIncludingAccordionFeature"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_msif_LineOfCreditFacilityMaximumBorrowingCapacityIncludingAccordionFeature_019e21fb-1deb-7b76-8054-443e7d499ef0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtInstrumentNumberOfExtensionOptions_019e21fb-1deb-7f7c-8b7d-a6e49be7612a" xlink:href="msif-20260630.xsd#msif_DebtInstrumentNumberOfExtensionOptions"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_msif_DebtInstrumentNumberOfExtensionOptions_019e21fb-1deb-7f7c-8b7d-a6e49be7612a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtInstrumentExtensionOptionTerm_019e21fb-1deb-7bc4-8b36-03e15699dd8c" xlink:href="msif-20260630.xsd#msif_DebtInstrumentExtensionOptionTerm"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_msif_DebtInstrumentExtensionOptionTerm_019e21fb-1deb-7bc4-8b36-03e15699dd8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e21fb-1deb-7ec9-8637-5c67f8cc3c7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e21fb-1deb-7ec9-8637-5c67f8cc3c7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019e21fb-1deb-7a94-9cf1-14a8659df5fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019e21fb-1deb-7a94-9cf1-14a8659df5fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_019e21fb-1deb-7dcb-8ccb-c9f528feba65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_019e21fb-1deb-7dcb-8ccb-c9f528feba65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e21fb-1deb-7cce-92de-42f6a75a4341" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019e21fb-1deb-7cce-92de-42f6a75a4341" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019e21fb-1deb-7355-957b-8737454aa980" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7e6d-afe9-2decc4cac918" xlink:to="loc_us-gaap_DebtInstrumentInterestRateDuringPeriod_019e21fb-1deb-7355-957b-8737454aa980" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTMainStreetFacilityDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTMainStreetFacilityDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTMainStreetFacilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7c6f-bbc4-ff8dcdcb5c77" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-778f-89d0-53e0ca895e52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7c6f-bbc4-ff8dcdcb5c77" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-778f-89d0-53e0ca895e52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7dad-9f5f-f23b2540ed02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-778f-89d0-53e0ca895e52" xlink:to="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7dad-9f5f-f23b2540ed02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-795d-8a23-54ad7acc422d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_019e21fb-1deb-7dad-9f5f-f23b2540ed02" xlink:to="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-795d-8a23-54ad7acc422d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-709a-8582-b5115b8882a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_019e21fb-1deb-795d-8a23-54ad7acc422d" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019e21fb-1deb-709a-8582-b5115b8882a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7b6f-b2b1-15e113949d92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-778f-89d0-53e0ca895e52" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7b6f-b2b1-15e113949d92" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7e82-b55a-30fcac6e3c52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7b6f-b2b1-15e113949d92" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7e82-b55a-30fcac6e3c52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MainStreetFacilityMember_019e21fb-1deb-7aa8-a706-7162862422c8" xlink:href="msif-20260630.xsd#msif_MainStreetFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7e82-b55a-30fcac6e3c52" xlink:to="loc_msif_MainStreetFacilityMember_019e21fb-1deb-7aa8-a706-7162862422c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7877-be5c-6ce9f951bc85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-778f-89d0-53e0ca895e52" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7877-be5c-6ce9f951bc85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7e3f-ba03-3f2189d08298" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7877-be5c-6ce9f951bc85" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7e3f-ba03-3f2189d08298" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7a08-aef3-ab3f80f304aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7e3f-ba03-3f2189d08298" xlink:to="loc_us-gaap_LineOfCreditMember_019e21fb-1deb-7a08-aef3-ab3f80f304aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-779a-b031-8ad0a840aee9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-778f-89d0-53e0ca895e52" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-779a-b031-8ad0a840aee9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e21fb-1deb-7121-925c-a6dde37d2241" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-779a-b031-8ad0a840aee9" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019e21fb-1deb-7121-925c-a6dde37d2241" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e21fb-1deb-7f2d-b367-11d8bc586386" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-779a-b031-8ad0a840aee9" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019e21fb-1deb-7f2d-b367-11d8bc586386" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtInstrumentBasisSpreadOnVariableRateFloor_019e21fb-1deb-7aea-803f-0e8168c08bd6" xlink:href="msif-20260630.xsd#msif_DebtInstrumentBasisSpreadOnVariableRateFloor"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-779a-b031-8ad0a840aee9" xlink:to="loc_msif_DebtInstrumentBasisSpreadOnVariableRateFloor_019e21fb-1deb-7aea-803f-0e8168c08bd6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019e21fb-1deb-7b41-a997-6c8370bf4ff1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-779a-b031-8ad0a840aee9" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019e21fb-1deb-7b41-a997-6c8370bf4ff1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_019e21fb-1deb-7ed6-b2eb-a80243e79617" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCredit"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-779a-b031-8ad0a840aee9" xlink:to="loc_us-gaap_LineOfCredit_019e21fb-1deb-7ed6-b2eb-a80243e79617" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTOctober2026SeriesANotesNarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTOctober2026SeriesANotesNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTOctober2026SeriesANotesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7f93-ad24-80643f231c36" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7b9c-bdca-5aaafc720bf8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7f93-ad24-80643f231c36" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7b9c-bdca-5aaafc720bf8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7385-8f58-c39e6e20e1f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7b9c-bdca-5aaafc720bf8" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7385-8f58-c39e6e20e1f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7480-b1d0-544427cc34ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7385-8f58-c39e6e20e1f7" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7480-b1d0-544427cc34ef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_October2026NotesMember_019e21fb-1deb-7952-a796-6df4bcd31e01" xlink:href="msif-20260630.xsd#msif_October2026NotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-7480-b1d0-544427cc34ef" xlink:to="loc_msif_October2026NotesMember_019e21fb-1deb-7952-a796-6df4bcd31e01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7fb7-9713-93f52a478d02" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7b9c-bdca-5aaafc720bf8" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7fb7-9713-93f52a478d02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7c5d-a22e-a1532da7cf1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-7fb7-9713-93f52a478d02" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7c5d-a22e-a1532da7cf1e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-7aa4-ade3-0fd6f1d3e5ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7c5d-a22e-a1532da7cf1e" xlink:to="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-7aa4-ade3-0fd6f1d3e5ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7d2f-bfde-37ec47f9856b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7b9c-bdca-5aaafc720bf8" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7d2f-bfde-37ec47f9856b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019e21fb-1deb-7443-b5a5-2efedb5b751b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7d2f-bfde-37ec47f9856b" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019e21fb-1deb-7443-b5a5-2efedb5b751b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e21fb-1deb-7e04-b661-f0c2bcbc764e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7d2f-bfde-37ec47f9856b" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e21fb-1deb-7e04-b661-f0c2bcbc764e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DebtInstrumentInterestRateBelowInvestmentGradeRatingStatedPercentage_019e21fb-1deb-7816-8ae1-35440cf9fc31" xlink:href="msif-20260630.xsd#msif_DebtInstrumentInterestRateBelowInvestmentGradeRatingStatedPercentage"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-7d2f-bfde-37ec47f9856b" xlink:to="loc_msif_DebtInstrumentInterestRateBelowInvestmentGradeRatingStatedPercentage_019e21fb-1deb-7816-8ae1-35440cf9fc31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DEBTMay2029SeriesANotesDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DEBTMay2029SeriesANotesDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DEBTMay2029SeriesANotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7f40-bce5-fceea4b85d4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ea2-99e2-b842145e2f85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_019e21fb-1deb-7f40-bce5-fceea4b85d4c" xlink:to="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ea2-99e2-b842145e2f85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7ec4-9fc3-90bd0e9b6341" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ea2-99e2-b842145e2f85" xlink:to="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7ec4-9fc3-90bd0e9b6341" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-70a2-a52e-3a1772583305" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_019e21fb-1deb-7ec4-9fc3-90bd0e9b6341" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-70a2-a52e-3a1772583305" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_October2026NotesMember_019e21fb-1deb-7326-9927-80d1eb466e1f" xlink:href="msif-20260630.xsd#msif_October2026NotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019e21fb-1deb-70a2-a52e-3a1772583305" xlink:to="loc_msif_October2026NotesMember_019e21fb-1deb-7326-9927-80d1eb466e1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-71e1-b705-a22246620e76" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ea2-99e2-b842145e2f85" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-71e1-b705-a22246620e76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7b29-8394-b62111327212" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019e21fb-1deb-71e1-b705-a22246620e76" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7b29-8394-b62111327212" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-708e-bc64-48fe4c34f581" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019e21fb-1deb-7b29-8394-b62111327212" xlink:to="loc_us-gaap_UnsecuredDebtMember_019e21fb-1deb-708e-bc64-48fe4c34f581" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-792e-8b82-9654689c928a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_019e21fb-1deb-7ea2-99e2-b842145e2f85" xlink:to="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-792e-8b82-9654689c928a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019e21fb-1deb-7044-a6a0-a66fa3dd9009" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-792e-8b82-9654689c928a" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019e21fb-1deb-7044-a6a0-a66fa3dd9009" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e21fb-1deb-7dee-806c-fc66ba2887de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019e21fb-1deb-792e-8b82-9654689c928a" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019e21fb-1deb-7dee-806c-fc66ba2887de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/FINANCIALHIGHLIGHTSDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#FINANCIALHIGHLIGHTSDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/FINANCIALHIGHLIGHTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPerShareDataAbstract_019e21fb-1deb-7a30-88da-0f90f24586d5" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPerShareDataAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:to="loc_msif_InvestmentCompanyPerShareDataAbstract_019e21fb-1deb-7a30-88da-0f90f24586d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyFinancialHighlightsRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyPerShareDataAbstract_019e21fb-1deb-7a30-88da-0f90f24586d5" xlink:to="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetAssetValuePerShare_019e21fb-1deb-7b5b-a8a0-dd602ebd0c66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetAssetValuePerShare"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_NetAssetValuePerShare_019e21fb-1deb-7b5b-a8a0-dd602ebd0c66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_019e21fb-1deb-7e1f-bff6-3111c13155d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare_019e21fb-1deb-7e1f-bff6-3111c13155d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare_019e21fb-1deb-7b15-a5ae-0977536ad208" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_InvestmentCompanyRealizedGainLossOnInvestmentPerShare_019e21fb-1deb-7b15-a5ae-0977536ad208" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare_019e21fb-1deb-7fcd-9546-62e566a5e793" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_InvestmentCompanyUnrealizedGainLossOnInvestmentPerShare_019e21fb-1deb-7fcd-9546-62e566a5e793" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyIncomeTaxBenefitProvisionPerShare_019e21fb-1deb-77c1-9b93-030ab1ce044e" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyIncomeTaxBenefitProvisionPerShare"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_msif_InvestmentCompanyIncomeTaxBenefitProvisionPerShare_019e21fb-1deb-77c1-9b93-030ab1ce044e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare_019e21fb-1deb-7efd-8508-7eb8b6db4a06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare_019e21fb-1deb-7efd-8508-7eb8b6db4a06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyDividendDistributionToShareholdersPerShare_019e21fb-1deb-7204-ba34-f24de972c5e1" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyDividendDistributionToShareholdersPerShare"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_msif_InvestmentCompanyDividendDistributionToShareholdersPerShare_019e21fb-1deb-7204-ba34-f24de972c5e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_019e21fb-1deb-772f-8f92-893a355d9f15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyDistributionToShareholdersPerShare"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_InvestmentCompanyDistributionToShareholdersPerShare_019e21fb-1deb-772f-8f92-893a355d9f15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyRepurchaseOfSharesPerShare_019e21fb-1deb-7736-8f3a-9960b753468b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyRepurchaseOfSharesPerShare"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_InvestmentCompanyRepurchaseOfSharesPerShare_019e21fb-1deb-7736-8f3a-9960b753468b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyEffectOfStockOfferingsPerShare_019e21fb-1deb-7a56-b7e2-c3363da12893" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyEffectOfStockOfferingsPerShare"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_msif_InvestmentCompanyEffectOfStockOfferingsPerShare_019e21fb-1deb-7a56-b7e2-c3363da12893" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOtherPerShare_019e21fb-1deb-7b55-9801-59f05d72a8b6" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOtherPerShare"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_msif_InvestmentCompanyOtherPerShare_019e21fb-1deb-7b55-9801-59f05d72a8b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetAssetValuePerShare_019e21fb-1deb-7f6c-b712-88a4e9e31ccb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetAssetValuePerShare"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_NetAssetValuePerShare_019e21fb-1deb-7f6c-b712-88a4e9e31ccb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyMarketValuePerShare_019e21fb-1deb-70a3-8694-3a86bcb9ccc8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyMarketValuePerShare"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyFinancialHighlightsRollForward_019e21fb-1deb-7ce3-a3bb-85725f6c801c" xlink:to="loc_us-gaap_InvestmentCompanyMarketValuePerShare_019e21fb-1deb-70a3-8694-3a86bcb9ccc8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyCommonStockSharesOutstanding_019e21fb-1deb-77b5-a282-a77925192489" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyCommonStockSharesOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:to="loc_msif_InvestmentCompanyCommonStockSharesOutstanding_019e21fb-1deb-77b5-a282-a77925192489" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e21fb-1deb-7d92-b830-85d78a9fbceb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:to="loc_us-gaap_StockholdersEquity_019e21fb-1deb-7d92-b830-85d78a9fbceb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyAverageNetAssets_019e21fb-1deb-7183-bbcd-9376cb862309" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyAverageNetAssets"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:to="loc_us-gaap_InvestmentCompanyAverageNetAssets_019e21fb-1deb-7183-bbcd-9376cb862309" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAverageAmountOutstanding_019e21fb-1deb-7d61-8cd9-aba3838a30f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtAverageAmountOutstanding"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:to="loc_us-gaap_LongTermDebtAverageAmountOutstanding_019e21fb-1deb-7d61-8cd9-aba3838a30f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyRatioToAverageNetAssetsAbstract"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:to="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyExpenseRatioIncludingIncomeTaxExpense_019e21fb-1deb-79c8-86d5-fd15d7453c4d" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyExpenseRatioIncludingIncomeTaxExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_msif_InvestmentCompanyExpenseRatioIncludingIncomeTaxExpense_019e21fb-1deb-79c8-86d5-fd15d7453c4d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOperatingExpensesRatio_019e21fb-1deb-70ba-b674-4df274268bc5" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOperatingExpensesRatio"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_msif_InvestmentCompanyOperatingExpensesRatio_019e21fb-1deb-70ba-b674-4df274268bc5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpense_019e21fb-1deb-7d5c-9ae6-0ad17e474d57" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpense_019e21fb-1deb-7d5c-9ae6-0ad17e474d57" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseAndIncentiveFees_019e21fb-1deb-7387-b247-331d402278cb" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseAndIncentiveFees"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseAndIncentiveFees_019e21fb-1deb-7387-b247-331d402278cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_019e21fb-1deb-7d5c-97d8-4129e392f81e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyInvestmentIncomeLossRatio"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_us-gaap_InvestmentCompanyInvestmentIncomeLossRatio_019e21fb-1deb-7d5c-97d8-4129e392f81e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyPortfolioTurnover_019e21fb-1deb-7fad-95a1-b8be7e61bd55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyPortfolioTurnover"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_us-gaap_InvestmentCompanyPortfolioTurnover_019e21fb-1deb-7fad-95a1-b8be7e61bd55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyTotalReturnMarketValue_019e21fb-1deb-7d84-af9c-23e0d7d61956" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyTotalReturnMarketValue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_us-gaap_InvestmentCompanyTotalReturnMarketValue_019e21fb-1deb-7d84-af9c-23e0d7d61956" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyTotalReturn_019e21fb-1deb-784b-b21d-d87988a883a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyTotalReturn"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_us-gaap_InvestmentCompanyTotalReturn_019e21fb-1deb-784b-b21d-d87988a883a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyContractualFeeWaived_019e21fb-1deb-7abc-9a70-16ecd306d37c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyContractualFeeWaived"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_us-gaap_InvestmentCompanyContractualFeeWaived_019e21fb-1deb-7abc-9a70-16ecd306d37c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyPurchaseOfStockAtThePublicOfferingPricePerShare_019ecc51-1e1a-70dc-ab18-f42eacbd819b" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyPurchaseOfStockAtThePublicOfferingPricePerShare"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsAbstract_019e21fb-1deb-79d6-97e1-76b8914b5e24" xlink:to="loc_msif_InvestmentCompanyPurchaseOfStockAtThePublicOfferingPricePerShare_019ecc51-1e1a-70dc-ab18-f42eacbd819b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract_019e21fb-1deb-7dd8-803d-6c2510424ff8" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentCompanyAbstract_019e21fb-1deb-78c1-acc1-3d96c4294d5e" xlink:to="loc_msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract_019e21fb-1deb-7dd8-803d-6c2510424ff8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyExpenseRatioIncludingIncomeTaxExpenseExcludingExpenseWaivers_019e21fb-1deb-76c9-b5e1-b6a2d562aebf" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyExpenseRatioIncludingIncomeTaxExpenseExcludingExpenseWaivers"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract_019e21fb-1deb-7dd8-803d-6c2510424ff8" xlink:to="loc_msif_InvestmentCompanyExpenseRatioIncludingIncomeTaxExpenseExcludingExpenseWaivers_019e21fb-1deb-76c9-b5e1-b6a2d562aebf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingExpenseWaivers_019e21fb-1deb-7217-84b2-34f330a0f16e" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOperatingExpensesRatioExcludingExpenseWaivers"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract_019e21fb-1deb-7dd8-803d-6c2510424ff8" xlink:to="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingExpenseWaivers_019e21fb-1deb-7217-84b2-34f330a0f16e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseAndExpenseWaivers_019e21fb-1deb-7660-a124-16152fa1a1a3" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseAndExpenseWaivers"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract_019e21fb-1deb-7dd8-803d-6c2510424ff8" xlink:to="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseAndExpenseWaivers_019e21fb-1deb-7660-a124-16152fa1a1a3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseIncentiveFeesAndExpenseWaivers_019e21fb-1deb-7cee-9fa0-ab8dae0cb358" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseIncentiveFeesAndExpenseWaivers"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract_019e21fb-1deb-7dd8-803d-6c2510424ff8" xlink:to="loc_msif_InvestmentCompanyOperatingExpensesRatioExcludingInterestExpenseIncentiveFeesAndExpenseWaivers_019e21fb-1deb-7cee-9fa0-ab8dae0cb358" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyInvestmentIncomeLossRatioExcludingExpenseWaivers_019e21fb-1deb-7323-a0f4-9c74c0ba7830" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyInvestmentIncomeLossRatioExcludingExpenseWaivers"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentCompanyRatioToAverageNetAssetsExcludingExpenseWaiversAbstract_019e21fb-1deb-7dd8-803d-6c2510424ff8" xlink:to="loc_msif_InvestmentCompanyInvestmentIncomeLossRatioExcludingExpenseWaivers_019e21fb-1deb-7323-a0f4-9c74c0ba7830" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofDividendsPayableDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofDividendsPayableDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofDividendsPayableDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7595-8357-fc622f409037" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019e21fb-1dec-743e-b81b-b70d52529116" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7595-8357-fc622f409037" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019e21fb-1dec-743e-b81b-b70d52529116" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsAxis_019e418b-96a5-7150-8c76-7de2d8f02720" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019e21fb-1dec-743e-b81b-b70d52529116" xlink:to="loc_us-gaap_DividendsAxis_019e418b-96a5-7150-8c76-7de2d8f02720" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsAxis_019e418b-96a5-7150-8c76-7de2d8f02720" xlink:to="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026Q2RegularDividendsMember_019e418b-96a5-794f-8037-69ac651cd8f9" xlink:href="msif-20260630.xsd#msif_O2026Q2RegularDividendsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2026Q2RegularDividendsMember_019e418b-96a5-794f-8037-69ac651cd8f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2025Q2RegularDividendsMember_019e418b-96a5-7de8-b600-277c45ef2868" xlink:href="msif-20260630.xsd#msif_O2025Q2RegularDividendsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2025Q2RegularDividendsMember_019e418b-96a5-7de8-b600-277c45ef2868" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026A2RegularDividendsMember_019e418b-96a5-7b28-b6e8-f50dd75b6a50" xlink:href="msif-20260630.xsd#msif_O2026A2RegularDividendsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2026A2RegularDividendsMember_019e418b-96a5-7b28-b6e8-f50dd75b6a50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2025A2RegularDividendsMember_019e418b-96a5-7ebd-a303-10bb6ed29aaa" xlink:href="msif-20260630.xsd#msif_O2025A2RegularDividendsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2025A2RegularDividendsMember_019e418b-96a5-7ebd-a303-10bb6ed29aaa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026Q2SupplementalDividendsMember_019e418b-96a5-7d47-b3d1-9dce2c78a6d1" xlink:href="msif-20260630.xsd#msif_O2026Q2SupplementalDividendsMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2026Q2SupplementalDividendsMember_019e418b-96a5-7d47-b3d1-9dce2c78a6d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2025Q2SupplementalDividendsMember_019e418b-96a5-70aa-ad93-b21623f4e43b" xlink:href="msif-20260630.xsd#msif_O2025Q2SupplementalDividendsMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2025Q2SupplementalDividendsMember_019e418b-96a5-70aa-ad93-b21623f4e43b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026A2SupplementalDividendsMember_019e418b-96a5-73ad-bc6d-7b847be0fc7c" xlink:href="msif-20260630.xsd#msif_O2026A2SupplementalDividendsMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2026A2SupplementalDividendsMember_019e418b-96a5-73ad-bc6d-7b847be0fc7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2025A2SupplementalDividendsMember_019e418b-96a5-78f3-a3a7-d757696e52d2" xlink:href="msif-20260630.xsd#msif_O2025A2SupplementalDividendsMember"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e418b-96a5-793b-93aa-4e54777a755f" xlink:to="loc_msif_O2025A2SupplementalDividendsMember_019e418b-96a5-78f3-a3a7-d757696e52d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019e21fb-1dec-7e36-a4d6-6156803214b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019e21fb-1dec-743e-b81b-b70d52529116" xlink:to="loc_us-gaap_ClassOfStockLineItems_019e21fb-1dec-7e36-a4d6-6156803214b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_019e21fb-1dec-7cbd-839c-333933ae1f8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockDividendsPerShareCashPaid"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_019e21fb-1dec-7e36-a4d6-6156803214b2" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_019e21fb-1dec-7cbd-839c-333933ae1f8d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019e21fb-1dec-7caf-91b8-02415d863f56" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_019e21fb-1dec-7e36-a4d6-6156803214b2" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019e21fb-1dec-7caf-91b8-02415d863f56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofTaxableIncomeandtoTotalDistributionsDeclaredtoCommonStockReconciliationDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofTaxableIncomeandtoTotalDistributionsDeclaredtoCommonStockReconciliationDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofTaxableIncomeandtoTotalDistributionsDeclaredtoCommonStockReconciliationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e21fb-1dec-7953-a837-1b836f3e9f16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_us-gaap_NetIncomeLoss_019e21fb-1dec-7953-a837-1b836f3e9f16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible_019e21fb-1dec-7773-b51e-40141288cfbc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_us-gaap_InvestmentCompanyTaxBasisUnrealizedGainLossNotCurrentlyTaxableDeductible_019e21fb-1dec-7773-b51e-40141288cfbc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisIncomeTaxProvision_019e21fb-1dec-7523-9b7d-f24378e0db59" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisIncomeTaxProvision"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisIncomeTaxProvision_019e21fb-1dec-7523-9b7d-f24378e0db59" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisPreTaxBookIncomeLossNotConsolidatedForTaxPurposesIncreaseDecreaseInTaxableIncome_019e21fb-1dec-7afa-b1d5-bb0170aad86e" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisPreTaxBookIncomeLossNotConsolidatedForTaxPurposesIncreaseDecreaseInTaxableIncome"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisPreTaxBookIncomeLossNotConsolidatedForTaxPurposesIncreaseDecreaseInTaxableIncome_019e21fb-1dec-7afa-b1d5-bb0170aad86e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisBookIncomeAndTaxIncomeDifferencesIncreaseDecreaseInTaxableIncome_019e21fb-1dec-7f11-9474-1a0803179631" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisBookIncomeAndTaxIncomeDifferencesIncreaseDecreaseInTaxableIncome"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisBookIncomeAndTaxIncomeDifferencesIncreaseDecreaseInTaxableIncome_019e21fb-1dec-7f11-9474-1a0803179631" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisNetIncomeLossAttributableToParentEstimated_019e21fb-1dec-7488-8727-eda207ac45fd" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisNetIncomeLossAttributableToParentEstimated"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisNetIncomeLossAttributableToParentEstimated_019e21fb-1dec-7488-8727-eda207ac45fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisTaxableIncomeEarnedInPriorYearAndCarriedForwardForDistributionInCurrentYear_019e21fb-1dec-7204-b4bb-5d692f4be761" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisTaxableIncomeEarnedInPriorYearAndCarriedForwardForDistributionInCurrentYear"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisTaxableIncomeEarnedInPriorYearAndCarriedForwardForDistributionInCurrentYear_019e21fb-1dec-7204-b4bb-5d692f4be761" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisTaxableIncomeEarnedPriorToPeriodEndAndCarriedForwardForDistributionNextPeriod_019e21fb-1dec-75fa-91f2-16e182c0c20d" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisTaxableIncomeEarnedPriorToPeriodEndAndCarriedForwardForDistributionNextPeriod"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisTaxableIncomeEarnedPriorToPeriodEndAndCarriedForwardForDistributionNextPeriod_019e21fb-1dec-75fa-91f2-16e182c0c20d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisDividendsPaidOrPayable_019e21fb-1dec-7dae-af7c-3d384fc1c152" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisDividendsPaidOrPayable"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisDividendsPaidOrPayable_019e21fb-1dec-7dae-af7c-3d384fc1c152" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyTaxBasisDistributionsAccruedOrPaidToCommonStockholders_019e21fb-1dec-7b71-8052-d0ce653261a8" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyTaxBasisDistributionsAccruedOrPaidToCommonStockholders"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c7a-adbd-b784f6d82570" xlink:to="loc_msif_InvestmentCompanyTaxBasisDistributionsAccruedOrPaidToCommonStockholders_019e21fb-1dec-7b71-8052-d0ce653261a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofNetInvestmentIncomeRelatedTaxesDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofNetInvestmentIncomeRelatedTaxesDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMEScheduleofNetInvestmentIncomeRelatedTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c56-8a35-09fea4cbfbea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_NetInvestmentIncomeTaxExpenseBenefitAbstract_019e21fb-1dec-7a81-83f2-0997f72891af" xlink:href="msif-20260630.xsd#msif_NetInvestmentIncomeTaxExpenseBenefitAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c56-8a35-09fea4cbfbea" xlink:to="loc_msif_NetInvestmentIncomeTaxExpenseBenefitAbstract_019e21fb-1dec-7a81-83f2-0997f72891af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_019e21fb-1dec-74a4-8e29-2df8e0098bed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_NetInvestmentIncomeTaxExpenseBenefitAbstract_019e21fb-1dec-7a81-83f2-0997f72891af" xlink:to="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_019e21fb-1dec-74a4-8e29-2df8e0098bed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentIncomeOperatingFederalTaxExpenseBenefitCurrent_019e21fb-1dec-7c13-8009-22bdb72ccfbe" xlink:href="msif-20260630.xsd#msif_InvestmentIncomeOperatingFederalTaxExpenseBenefitCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_019e21fb-1dec-74a4-8e29-2df8e0098bed" xlink:to="loc_msif_InvestmentIncomeOperatingFederalTaxExpenseBenefitCurrent_019e21fb-1dec-7c13-8009-22bdb72ccfbe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentIncomeOperatingStateAndOtherTaxExpenseBenefitCurrent_019e21fb-1dec-771a-a5b1-a0ead8bbf927" xlink:href="msif-20260630.xsd#msif_InvestmentIncomeOperatingStateAndOtherTaxExpenseBenefitCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_019e21fb-1dec-74a4-8e29-2df8e0098bed" xlink:to="loc_msif_InvestmentIncomeOperatingStateAndOtherTaxExpenseBenefitCurrent_019e21fb-1dec-771a-a5b1-a0ead8bbf927" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyExciseTaxExpenseBenefit_019e21fb-1dec-7b41-aca1-16e527148906" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyExciseTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_019e21fb-1dec-74a4-8e29-2df8e0098bed" xlink:to="loc_msif_InvestmentCompanyExciseTaxExpenseBenefit_019e21fb-1dec-7b41-aca1-16e527148906" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentIncomeOperatingTaxExpenseBenefitCurrent_019e21fb-1dec-7a4d-9bdb-f4d8bf5bb78d" xlink:href="msif-20260630.xsd#msif_InvestmentIncomeOperatingTaxExpenseBenefitCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract_019e21fb-1dec-74a4-8e29-2df8e0098bed" xlink:to="loc_msif_InvestmentIncomeOperatingTaxExpenseBenefitCurrent_019e21fb-1dec-7a4d-9bdb-f4d8bf5bb78d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DeferredTaxExpenseIncomeAbstract_019e21fb-1dec-716c-a23a-d544af2b6039" xlink:href="msif-20260630.xsd#msif_DeferredTaxExpenseIncomeAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_NetInvestmentIncomeTaxExpenseBenefitAbstract_019e21fb-1dec-7a81-83f2-0997f72891af" xlink:to="loc_msif_DeferredTaxExpenseIncomeAbstract_019e21fb-1dec-716c-a23a-d544af2b6039" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentIncomeOperatingDeferredFederalTaxExpenseBenefit_019e21fb-1dec-7d7e-9a10-08ec1869b468" xlink:href="msif-20260630.xsd#msif_InvestmentIncomeOperatingDeferredFederalTaxExpenseBenefit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_DeferredTaxExpenseIncomeAbstract_019e21fb-1dec-716c-a23a-d544af2b6039" xlink:to="loc_msif_InvestmentIncomeOperatingDeferredFederalTaxExpenseBenefit_019e21fb-1dec-7d7e-9a10-08ec1869b468" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentIncomeOperatingDeferredStateAndOtherTaxExpenseBenefit_019e21fb-1dec-7779-859d-f4853ca872b4" xlink:href="msif-20260630.xsd#msif_InvestmentIncomeOperatingDeferredStateAndOtherTaxExpenseBenefit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_DeferredTaxExpenseIncomeAbstract_019e21fb-1dec-716c-a23a-d544af2b6039" xlink:to="loc_msif_InvestmentIncomeOperatingDeferredStateAndOtherTaxExpenseBenefit_019e21fb-1dec-7779-859d-f4853ca872b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentIncomeOperatingDeferredTaxExpenseBenefit_019e21fb-1dec-7fac-a43b-05d5f4683af2" xlink:href="msif-20260630.xsd#msif_InvestmentIncomeOperatingDeferredTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_DeferredTaxExpenseIncomeAbstract_019e21fb-1dec-716c-a23a-d544af2b6039" xlink:to="loc_msif_InvestmentIncomeOperatingDeferredTaxExpenseBenefit_019e21fb-1dec-7fac-a43b-05d5f4683af2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_019e21fb-1dec-76d6-8280-fcabaa899df4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_NetInvestmentIncomeTaxExpenseBenefitAbstract_019e21fb-1dec-7a81-83f2-0997f72891af" xlink:to="loc_us-gaap_InvestmentIncomeOperatingTaxExpenseBenefit_019e21fb-1dec-76d6-8280-fcabaa899df4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentTaxExpenseIncomeAbstract_019e21fb-1dec-78a8-9202-e092af2e39e4" xlink:href="msif-20260630.xsd#msif_InvestmentTaxExpenseIncomeAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c56-8a35-09fea4cbfbea" xlink:to="loc_msif_InvestmentTaxExpenseIncomeAbstract_019e21fb-1dec-78a8-9202-e092af2e39e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentTaxExpenseIncomeDeferredAbstract_019e21fb-1dec-7826-92cd-3cbb51e8c8e0" xlink:href="msif-20260630.xsd#msif_InvestmentTaxExpenseIncomeDeferredAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentTaxExpenseIncomeAbstract_019e21fb-1dec-78a8-9202-e092af2e39e4" xlink:to="loc_msif_InvestmentTaxExpenseIncomeDeferredAbstract_019e21fb-1dec-7826-92cd-3cbb51e8c8e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredFederalTaxExpenseBenefit_019e21fb-1dec-7646-9ae1-08c3552aea38" xlink:href="msif-20260630.xsd#msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredFederalTaxExpenseBenefit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentTaxExpenseIncomeDeferredAbstract_019e21fb-1dec-7826-92cd-3cbb51e8c8e0" xlink:to="loc_msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredFederalTaxExpenseBenefit_019e21fb-1dec-7646-9ae1-08c3552aea38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredStateAndOtherTaxExpenseBenefit_019e21fb-1dec-70b9-b58b-4c7f0d353a70" xlink:href="msif-20260630.xsd#msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredStateAndOtherTaxExpenseBenefit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentTaxExpenseIncomeDeferredAbstract_019e21fb-1dec-7826-92cd-3cbb51e8c8e0" xlink:to="loc_msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredStateAndOtherTaxExpenseBenefit_019e21fb-1dec-70b9-b58b-4c7f0d353a70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredTaxExpenseBenefit_019e21fb-1dec-79e2-a5b1-a4a47a1f1632" xlink:href="msif-20260630.xsd#msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentTaxExpenseIncomeDeferredAbstract_019e21fb-1dec-7826-92cd-3cbb51e8c8e0" xlink:to="loc_msif_RealizedGainLossInvestmentAndDerivativeOperatingDeferredTaxExpenseBenefit_019e21fb-1dec-79e2-a5b1-a4a47a1f1632" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_019e21fb-1dec-758c-aaed-9761fd543448" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_InvestmentTaxExpenseIncomeAbstract_019e21fb-1dec-78a8-9202-e092af2e39e4" xlink:to="loc_us-gaap_RealizedGainLossInvestmentAndDerivativeOperatingTaxExpenseBenefit_019e21fb-1dec-758c-aaed-9761fd543448" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyIncomeTaxExpenseBenefit_019e21fb-1dec-7e6b-a83f-115c28bd9c4d" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyIncomeTaxExpenseBenefit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7c56-8a35-09fea4cbfbea" xlink:to="loc_msif_InvestmentCompanyIncomeTaxExpenseBenefit_019e21fb-1dec-7e6b-a83f-115c28bd9c4d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMENarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMENarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDSDISTRIBUTIONSANDTAXABLEINCOMENarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7508-b0da-925916efecd6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilities_019e21fb-1dec-7874-abd7-6d4845443954" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxLiabilities"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7508-b0da-925916efecd6" xlink:to="loc_us-gaap_DeferredTaxLiabilities_019e21fb-1dec-7874-abd7-6d4845443954" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwards_019e21fb-1dec-7b56-aef9-8ff693789b21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLossCarryforwards"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_019e21fb-1dec-7508-b0da-925916efecd6" xlink:to="loc_us-gaap_OperatingLossCarryforwards_019e21fb-1dec-7b56-aef9-8ff693789b21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLANScheduleofSummarizedDividendReinvestmentPlanInformationDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDREINVESTMENTPLANScheduleofSummarizedDividendReinvestmentPlanInformationDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLANScheduleofSummarizedDividendReinvestmentPlanInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_019e21fb-1dec-7365-aafc-bc0a3ca2e141" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_019e21fb-1dec-74fb-b50d-2790157fd366" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_019e21fb-1dec-7365-aafc-bc0a3ca2e141" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_019e21fb-1dec-74fb-b50d-2790157fd366" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_019e21fb-1dec-7933-b0f3-b12cbcbdbd5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_019e21fb-1dec-7365-aafc-bc0a3ca2e141" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_019e21fb-1dec-7933-b0f3-b12cbcbdbd5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLANNarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#DIVIDENDREINVESTMENTPLANNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/DIVIDENDREINVESTMENTPLANNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_019e21fb-1dec-788f-a042-80b8d11d986b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramTable_019e21fb-1dec-70ef-866c-8eaf8ca7cf5b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ShareRepurchaseProgramTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_019e21fb-1dec-788f-a042-80b8d11d986b" xlink:to="loc_srt_ShareRepurchaseProgramTable_019e21fb-1dec-70ef-866c-8eaf8ca7cf5b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_019e21fb-1dec-7cdb-b5eb-9d975bde3426" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ShareRepurchaseProgramTable_019e21fb-1dec-70ef-866c-8eaf8ca7cf5b" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_019e21fb-1dec-7cdb-b5eb-9d975bde3426" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1dec-7ffa-a805-c241c656d102" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019e21fb-1dec-7cdb-b5eb-9d975bde3426" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1dec-7ffa-a805-c241c656d102" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_DividendReinvestmentPlanMember_019e21fb-1dec-75c9-9ae6-56ea112b122c" xlink:href="msif-20260630.xsd#msif_DividendReinvestmentPlanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019e21fb-1dec-7ffa-a805-c241c656d102" xlink:to="loc_msif_DividendReinvestmentPlanMember_019e21fb-1dec-75c9-9ae6-56ea112b122c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramLineItems_019e21fb-1dec-7f6c-bdb3-22b1d2639a29" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ShareRepurchaseProgramLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ShareRepurchaseProgramTable_019e21fb-1dec-70ef-866c-8eaf8ca7cf5b" xlink:to="loc_srt_ShareRepurchaseProgramLineItems_019e21fb-1dec-7f6c-bdb3-22b1d2639a29" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_019e21fb-1dec-7252-baa6-267926acda5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019e21fb-1dec-7f6c-bdb3-22b1d2639a29" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_019e21fb-1dec-7252-baa6-267926acda5e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019e21fb-1dec-7ae3-b306-8ae301bd060d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019e21fb-1dec-7f6c-bdb3-22b1d2639a29" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019e21fb-1dec-7ae3-b306-8ae301bd060d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_019e21fb-1dec-7063-99a1-cb5474481559" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019e21fb-1dec-7f6c-bdb3-22b1d2639a29" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_019e21fb-1dec-7063-99a1-cb5474481559" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#COMMITMENTSANDCONTINGENCIESDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_019e21fb-1dec-7e83-a3dd-d6588fe1c1fb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable_019e21fb-1dec-73ca-ad6d-209194ba27e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_019e21fb-1dec-7e83-a3dd-d6588fe1c1fb" xlink:to="loc_us-gaap_OtherCommitmentsTable_019e21fb-1dec-73ca-ad6d-209194ba27e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1dec-7370-99e1-f515b82318de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIdentifierAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_019e21fb-1dec-73ca-ad6d-209194ba27e1" xlink:to="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1dec-7370-99e1-f515b82318de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019e21fb-1dec-75ea-b7a0-10ca4e7a7fe4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_019e21fb-1dec-73ca-ad6d-209194ba27e1" xlink:to="loc_us-gaap_InvestmentTypeAxis_019e21fb-1dec-75ea-b7a0-10ca4e7a7fe4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1dec-7d44-b533-bbaca28bd36b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeAxis_019e21fb-1dec-75ea-b7a0-10ca4e7a7fe4" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1dec-7d44-b533-bbaca28bd36b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_019e21fb-1dec-7a41-ac05-452e1ee69096" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1dec-7d44-b533-bbaca28bd36b" xlink:to="loc_us-gaap_EquitySecuritiesMember_019e21fb-1dec-7a41-ac05-452e1ee69096" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesMember_019e21fb-1dec-79a6-847c-66afaa02a7e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1dec-7d44-b533-bbaca28bd36b" xlink:to="loc_us-gaap_DebtSecuritiesMember_019e21fb-1dec-79a6-847c-66afaa02a7e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1dec-7a85-acb9-c8eefabf7c44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAggregatedInvestmentsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019e21fb-1dec-7d44-b533-bbaca28bd36b" xlink:to="loc_us-gaap_OtherAggregatedInvestmentsMember_019e21fb-1dec-7a85-acb9-c8eefabf7c44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_019e21fb-1dec-71a2-b97f-d68f0e2e03e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_019e21fb-1dec-73ca-ad6d-209194ba27e1" xlink:to="loc_us-gaap_OtherCommitmentsLineItems_019e21fb-1dec-71a2-b97f-d68f0e2e03e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount_019e21fb-1dec-76fd-8a2b-b9c68d3d1107" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019e21fb-1dec-71a2-b97f-d68f0e2e03e4" xlink:to="loc_us-gaap_InvestmentCompanyFinancialCommitmentToInvesteeFutureAmount_019e21fb-1dec-76fd-8a2b-b9c68d3d1107" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentCompanyNumberOfAdditionalInvestmentsCommitmentsRestrictedForFundExpensesOrFollowOnInvestmentsInExistingPortfolio_019e21fb-1dec-7095-8e05-2fdb3cf68575" xlink:href="msif-20260630.xsd#msif_InvestmentCompanyNumberOfAdditionalInvestmentsCommitmentsRestrictedForFundExpensesOrFollowOnInvestmentsInExistingPortfolio"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019e21fb-1dec-71a2-b97f-d68f0e2e03e4" xlink:to="loc_msif_InvestmentCompanyNumberOfAdditionalInvestmentsCommitmentsRestrictedForFundExpensesOrFollowOnInvestmentsInExistingPortfolio_019e21fb-1dec-7095-8e05-2fdb3cf68575" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSNarrativeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#RELATEDPARTYTRANSACTIONSNarrativeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7a41-8305-1dc26faf755c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-7020-9e2c-4b189616b8dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7a41-8305-1dc26faf755c" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-7020-9e2c-4b189616b8dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_019e21fb-1dec-7f88-9662-9bfeae80e0c8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CounterpartyNameAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-7020-9e2c-4b189616b8dc" xlink:to="loc_srt_CounterpartyNameAxis_019e21fb-1dec-7f88-9662-9bfeae80e0c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e21fb-1dec-7732-a510-9552624d2bc8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CounterpartyNameAxis_019e21fb-1dec-7f88-9662-9bfeae80e0c8" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e21fb-1dec-7732-a510-9552624d2bc8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MSCIncomeMember_019e21fb-1dec-7c1c-906a-c65dd52fdea5" xlink:href="msif-20260630.xsd#msif_MSCIncomeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e21fb-1dec-7732-a510-9552624d2bc8" xlink:to="loc_msif_MSCIncomeMember_019e21fb-1dec-7c1c-906a-c65dd52fdea5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_019e21fb-1dec-72ec-906a-498d0425890b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-7020-9e2c-4b189616b8dc" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_019e21fb-1dec-72ec-906a-498d0425890b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019e21fb-1dec-72ec-906a-498d0425890b" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementMember_019e21fb-1dec-7c70-8f24-f733c88b5b75" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementMember_019e21fb-1dec-7c70-8f24-f733c88b5b75" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeMember_019e21fb-1dec-7c04-a8b7-c5d711461960" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeMember_019e21fb-1dec-7c04-a8b7-c5d711461960" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveRateQuarterlyHurdleRateMember_019e21fb-1dec-72fc-8860-5a68dddc8434" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveRateQuarterlyHurdleRateMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveRateQuarterlyHurdleRateMember_019e21fb-1dec-72fc-8860-5a68dddc8434" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveRateAnnualizedHurdleRateMember_019e21fb-1dec-7feb-8d41-7daca1ebecd6" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveRateAnnualizedHurdleRateMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveRateAnnualizedHurdleRateMember_019e21fb-1dec-7feb-8d41-7daca1ebecd6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeBelowCatchUpThresholdMember_019e21fb-1dec-782c-b147-a8db8b5c81b6" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeBelowCatchUpThresholdMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeBelowCatchUpThresholdMember_019e21fb-1dec-782c-b147-a8db8b5c81b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveRateQuarterlyCatchUpThresholdMember_019e21fb-1dec-777e-9b0d-a80b3e3170ff" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveRateQuarterlyCatchUpThresholdMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveRateQuarterlyCatchUpThresholdMember_019e21fb-1dec-777e-9b0d-a80b3e3170ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveRateAnnualizedCatchUpThresholdMember_019e21fb-1dec-7df8-95d3-4ad4f92ca2cb" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveRateAnnualizedCatchUpThresholdMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveRateAnnualizedCatchUpThresholdMember_019e21fb-1dec-7df8-95d3-4ad4f92ca2cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeExceedsCatchUpThresholdMember_019e21fb-1dec-7822-a37f-10b294a7d602" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeExceedsCatchUpThresholdMember"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveRatePreIncentiveFeeNetInvestmentIncomeExceedsCatchUpThresholdMember_019e21fb-1dec-7822-a37f-10b294a7d602" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementSubordinatedIncentiveFeesMember_019e21fb-1dec-7aec-ba5a-a8c4941052e5" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementSubordinatedIncentiveFeesMember"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementSubordinatedIncentiveFeesMember_019e21fb-1dec-7aec-ba5a-a8c4941052e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveFeesCapitalGainsFeesMember_019e21fb-1dec-7a62-88cb-da09d2fba0b0" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveFeesCapitalGainsFeesMember"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-7330-a5e0-bd5275d209de" xlink:to="loc_msif_AdvisoryAgreementIncentiveFeesCapitalGainsFeesMember_019e21fb-1dec-7a62-88cb-da09d2fba0b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019e21fb-1dec-788a-9eb9-447b5f87e84f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-7020-9e2c-4b189616b8dc" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019e21fb-1dec-788a-9eb9-447b5f87e84f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019e21fb-1dec-782c-9291-c070c548778f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019e21fb-1dec-788a-9eb9-447b5f87e84f" xlink:to="loc_us-gaap_RelatedPartyDomain_019e21fb-1dec-782c-9291-c070c548778f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019e21fb-1dec-7052-bf53-57acf29abf2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_019e21fb-1dec-782c-9291-c070c548778f" xlink:to="loc_us-gaap_RelatedPartyMember_019e21fb-1dec-7052-bf53-57acf29abf2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019e21fb-1dec-71a9-8244-bbd9375b4c59" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-7020-9e2c-4b189616b8dc" xlink:to="loc_dei_LegalEntityAxis_019e21fb-1dec-71a9-8244-bbd9375b4c59" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019e21fb-1dec-725a-be66-fe253209614c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_LegalEntityAxis_019e21fb-1dec-71a9-8244-bbd9375b4c59" xlink:to="loc_dei_EntityDomain_019e21fb-1dec-725a-be66-fe253209614c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MainStreetMember_019e21fb-1dec-7664-ac66-ab2eb48861d0" xlink:href="msif-20260630.xsd#msif_MainStreetMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain_019e21fb-1dec-725a-be66-fe253209614c" xlink:to="loc_msif_MainStreetMember_019e21fb-1dec-7664-ac66-ab2eb48861d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-7020-9e2c-4b189616b8dc" xlink:to="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ManagementAndServiceFeesBaseRate_019e21fb-1dec-7775-9192-bcd0771ecb2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementAndServiceFeesBaseRate"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_us-gaap_ManagementAndServiceFeesBaseRate_019e21fb-1dec-7775-9192-bcd0771ecb2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_RelatedPartyTransactionNumberOfComponentsRelatedToIncentiveFee_019e21fb-1dec-76e9-b723-7d506a8677b9" xlink:href="msif-20260630.xsd#msif_RelatedPartyTransactionNumberOfComponentsRelatedToIncentiveFee"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_msif_RelatedPartyTransactionNumberOfComponentsRelatedToIncentiveFee_019e21fb-1dec-76e9-b723-7d506a8677b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ManagementAndServiceFeesIncentiveRate_019e21fb-1dec-74d0-b9ff-b0dff31707cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementAndServiceFeesIncentiveRate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_us-gaap_ManagementAndServiceFeesIncentiveRate_019e21fb-1dec-74d0-b9ff-b0dff31707cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementAverageTotalAssetsThresholdPercent_019e21fb-1dec-70d5-ba42-c32144c47aa6" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementAverageTotalAssetsThresholdPercent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_msif_AdvisoryAgreementAverageTotalAssetsThresholdPercent_019e21fb-1dec-70d5-ba42-c32144c47aa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_019e21fb-1dec-7f27-8056-9346b9527d3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_us-gaap_InvestmentCompanyExpenseAfterReductionOfFeeWaiverAndReimbursement_019e21fb-1dec-7f27-8056-9346b9527d3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IncentiveFeeExpenseCapitalGainBasedReversal_019e21fb-1dec-7c83-b511-8584c5b33b1c" xlink:href="msif-20260630.xsd#msif_IncentiveFeeExpenseCapitalGainBasedReversal"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_msif_IncentiveFeeExpenseCapitalGainBasedReversal_019e21fb-1dec-7c83-b511-8584c5b33b1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedBalanceShares_019e21fb-1dec-7a10-b20e-cf2fcd937a63" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedBalanceShares"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_us-gaap_InvestmentOwnedBalanceShares_019e21fb-1dec-7a10-b20e-cf2fcd937a63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_ShareRepurchaseProgramPercentageOfOutstandingStockMaximum_019e21fb-1dec-71d0-9bd4-d8c9ca8b5705" xlink:href="msif-20260630.xsd#msif_ShareRepurchaseProgramPercentageOfOutstandingStockMaximum"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7799-b900-51ed297cd25e" xlink:to="loc_msif_ShareRepurchaseProgramPercentageOfOutstandingStockMaximum_019e21fb-1dec-71d0-9bd4-d8c9ca8b5705" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSScheduleofManagementAndIncentiveFeeDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#RELATEDPARTYTRANSACTIONSScheduleofManagementAndIncentiveFeeDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSScheduleofManagementAndIncentiveFeeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7b52-acc0-49f9eabb7eed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-737f-baef-379a034ab134" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-7b52-acc0-49f9eabb7eed" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-737f-baef-379a034ab134" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019e21fb-1dec-7a63-8ac1-ebc971dd8f48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-737f-baef-379a034ab134" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019e21fb-1dec-7a63-8ac1-ebc971dd8f48" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019e21fb-1dec-7b4a-a36b-141300cf59bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019e21fb-1dec-7a63-8ac1-ebc971dd8f48" xlink:to="loc_us-gaap_RelatedPartyDomain_019e21fb-1dec-7b4a-a36b-141300cf59bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019e21fb-1dec-7a4e-8930-14e01e9ebb7f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_019e21fb-1dec-7b4a-a36b-141300cf59bd" xlink:to="loc_us-gaap_RelatedPartyMember_019e21fb-1dec-7a4e-8930-14e01e9ebb7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_019e21fb-1dec-7807-9d96-c7b149903ffd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-737f-baef-379a034ab134" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_019e21fb-1dec-7807-9d96-c7b149903ffd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-77ed-bba8-0590c80d06d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019e21fb-1dec-7807-9d96-c7b149903ffd" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-77ed-bba8-0590c80d06d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementBaseManagementFeesMember_019e21fb-1dec-78a1-8156-8b2c2d783028" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementBaseManagementFeesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-77ed-bba8-0590c80d06d8" xlink:to="loc_msif_AdvisoryAgreementBaseManagementFeesMember_019e21fb-1dec-78a1-8156-8b2c2d783028" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementSubordinatedIncentiveFeesMember_019e21fb-1dec-743f-ab66-a3344ba638c7" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementSubordinatedIncentiveFeesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-77ed-bba8-0590c80d06d8" xlink:to="loc_msif_AdvisoryAgreementSubordinatedIncentiveFeesMember_019e21fb-1dec-743f-ab66-a3344ba638c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdvisoryAgreementIncentiveFeesCapitalGainsFeesMember_019e21fb-1dec-7c77-83e7-1d7a3e1e2797" xlink:href="msif-20260630.xsd#msif_AdvisoryAgreementIncentiveFeesCapitalGainsFeesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019e21fb-1dec-77ed-bba8-0590c80d06d8" xlink:to="loc_msif_AdvisoryAgreementIncentiveFeesCapitalGainsFeesMember_019e21fb-1dec-7c77-83e7-1d7a3e1e2797" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_019e21fb-1dec-7043-988f-8ae372a4a6c5" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CounterpartyNameAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-737f-baef-379a034ab134" xlink:to="loc_srt_CounterpartyNameAxis_019e21fb-1dec-7043-988f-8ae372a4a6c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e21fb-1dec-71a4-81e4-dedce4bb2bcc" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CounterpartyNameAxis_019e21fb-1dec-7043-988f-8ae372a4a6c5" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e21fb-1dec-71a4-81e4-dedce4bb2bcc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MSCIncomeMember_019e21fb-1dec-74f2-a995-abdfa30b0628" xlink:href="msif-20260630.xsd#msif_MSCIncomeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019e21fb-1dec-71a4-81e4-dedce4bb2bcc" xlink:to="loc_msif_MSCIncomeMember_019e21fb-1dec-74f2-a995-abdfa30b0628" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7393-bd76-1a3455ab0ebe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-737f-baef-379a034ab134" xlink:to="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7393-bd76-1a3455ab0ebe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ManagementFeeExpense_019e21fb-1dec-7891-9eaf-81f987b94238" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ManagementFeeExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7393-bd76-1a3455ab0ebe" xlink:to="loc_us-gaap_ManagementFeeExpense_019e21fb-1dec-7891-9eaf-81f987b94238" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncentiveFeeExpenseIncomeBased_019e21fb-1dec-7497-837f-5ace37773aa0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncentiveFeeExpenseIncomeBased"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7393-bd76-1a3455ab0ebe" xlink:to="loc_us-gaap_IncentiveFeeExpenseIncomeBased_019e21fb-1dec-7497-837f-5ace37773aa0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentCompanyIncentiveFeeWaivedIncomeBased_019e21fb-1dec-7ba6-ba99-cd385b2c7ee2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentCompanyIncentiveFeeWaivedIncomeBased"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7393-bd76-1a3455ab0ebe" xlink:to="loc_us-gaap_InvestmentCompanyIncentiveFeeWaivedIncomeBased_019e21fb-1dec-7ba6-ba99-cd385b2c7ee2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_IncentiveFeeExpenseCapitalGainBasedReversal_019e21fb-1dec-7055-9ddf-96100b2c2a00" xlink:href="msif-20260630.xsd#msif_IncentiveFeeExpenseCapitalGainBasedReversal"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-7393-bd76-1a3455ab0ebe" xlink:to="loc_msif_IncentiveFeeExpenseCapitalGainBasedReversal_019e21fb-1dec-7055-9ddf-96100b2c2a00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSScheduleofAnnualBasisPointRateDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#RELATEDPARTYTRANSACTIONSScheduleofAnnualBasisPointRateDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/RELATEDPARTYTRANSACTIONSScheduleofAnnualBasisPointRateDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-77f1-a309-169dd9be2198" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-702d-8703-fe2092e14dd7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_019e21fb-1dec-77f1-a309-169dd9be2198" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-702d-8703-fe2092e14dd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AnnualInterestRateAxis_019e21fb-1dec-7708-9bab-ea67df956b4c" xlink:href="msif-20260630.xsd#msif_AnnualInterestRateAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-702d-8703-fe2092e14dd7" xlink:to="loc_msif_AnnualInterestRateAxis_019e21fb-1dec-7708-9bab-ea67df956b4c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AnnualInterestRateDomain_019e21fb-1dec-7367-9706-9d6fb2d2585b" xlink:href="msif-20260630.xsd#msif_AnnualInterestRateDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AnnualInterestRateAxis_019e21fb-1dec-7708-9bab-ea67df956b4c" xlink:to="loc_msif_AnnualInterestRateDomain_019e21fb-1dec-7367-9706-9d6fb2d2585b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AnnualInterestRateMillionMember_019e21fb-1dec-750a-9613-ce13645da590" xlink:href="msif-20260630.xsd#msif_AnnualInterestRateMillionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AnnualInterestRateDomain_019e21fb-1dec-7367-9706-9d6fb2d2585b" xlink:to="loc_msif_AnnualInterestRateMillionMember_019e21fb-1dec-750a-9613-ce13645da590" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AnnualInterestRateBillionMember_019e21fb-1dec-7561-a519-584098f846e8" xlink:href="msif-20260630.xsd#msif_AnnualInterestRateBillionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AnnualInterestRateDomain_019e21fb-1dec-7367-9706-9d6fb2d2585b" xlink:to="loc_msif_AnnualInterestRateBillionMember_019e21fb-1dec-7561-a519-584098f846e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AnnualInterestRateGreaterThanBillionMember_019e21fb-1dec-7e4f-adc1-1477f69830c9" xlink:href="msif-20260630.xsd#msif_AnnualInterestRateGreaterThanBillionMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_AnnualInterestRateDomain_019e21fb-1dec-7367-9706-9d6fb2d2585b" xlink:to="loc_msif_AnnualInterestRateGreaterThanBillionMember_019e21fb-1dec-7e4f-adc1-1477f69830c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-722f-8567-79864d204853" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019e21fb-1dec-702d-8703-fe2092e14dd7" xlink:to="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-722f-8567-79864d204853" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_AdviserAgreementAnnualBasisPointReimbursementPercent_019e21fb-1dec-728c-9b8a-9c9bef7e68b4" xlink:href="msif-20260630.xsd#msif_AdviserAgreementAnnualBasisPointReimbursementPercent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019e21fb-1dec-722f-8567-79864d204853" xlink:to="loc_msif_AdviserAgreementAnnualBasisPointReimbursementPercent_019e21fb-1dec-728c-9b8a-9c9bef7e68b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/SUBSEQUENTEVENTSDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#SUBSEQUENTEVENTSDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/SUBSEQUENTEVENTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventsAbstract_019e21fb-1dec-7dfc-9fd4-f5b3a48b122f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_019e21fb-1dec-78ce-9ff8-14391a2c14d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_019e21fb-1dec-7dfc-9fd4-f5b3a48b122f" xlink:to="loc_us-gaap_SubsequentEventTable_019e21fb-1dec-78ce-9ff8-14391a2c14d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsAxis_019e40c6-efbb-7ed7-b9bb-49977e9b2eef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_019e21fb-1dec-78ce-9ff8-14391a2c14d3" xlink:to="loc_us-gaap_DividendsAxis_019e40c6-efbb-7ed7-b9bb-49977e9b2eef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsAxis_019e40c6-efbb-7ed7-b9bb-49977e9b2eef" xlink:to="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026M10DividendsMember_019e40c6-efbb-7399-b720-f046077e4c06" xlink:href="msif-20260630.xsd#msif_O2026M10DividendsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:to="loc_msif_O2026M10DividendsMember_019e40c6-efbb-7399-b720-f046077e4c06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026M11DividendsMember_019e40c6-efbb-7189-a117-1a8a88c53f60" xlink:href="msif-20260630.xsd#msif_O2026M11DividendsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:to="loc_msif_O2026M11DividendsMember_019e40c6-efbb-7189-a117-1a8a88c53f60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026M12DividendsMember_019e40c6-efbb-7078-9c11-4c5911e306c3" xlink:href="msif-20260630.xsd#msif_O2026M12DividendsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:to="loc_msif_O2026M12DividendsMember_019e40c6-efbb-7078-9c11-4c5911e306c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026Q4RegularDividendsMember_019e40c6-efbb-7998-b094-1372d0f74a66" xlink:href="msif-20260630.xsd#msif_O2026Q4RegularDividendsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:to="loc_msif_O2026Q4RegularDividendsMember_019e40c6-efbb-7998-b094-1372d0f74a66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026Q4SupplementalDividendsMember_019e40c6-efbb-7d57-9c89-3403b45c436a" xlink:href="msif-20260630.xsd#msif_O2026Q4SupplementalDividendsMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:to="loc_msif_O2026Q4SupplementalDividendsMember_019e40c6-efbb-7d57-9c89-3403b45c436a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_O2026Q4DividendsMember_019e40c6-efbb-7e86-8b97-a062df543960" xlink:href="msif-20260630.xsd#msif_O2026Q4DividendsMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DividendsDomain_019e40c6-efbb-724d-be7f-8478e151d1db" xlink:to="loc_msif_O2026Q4DividendsMember_019e40c6-efbb-7e86-8b97-a062df543960" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019e21fb-1dec-700e-a43b-64b56a803cd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_019e21fb-1dec-78ce-9ff8-14391a2c14d3" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019e21fb-1dec-700e-a43b-64b56a803cd1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019e21fb-1dec-7337-9b67-a2e354c2e4e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019e21fb-1dec-700e-a43b-64b56a803cd1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019e21fb-1dec-7337-9b67-a2e354c2e4e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019e21fb-1dec-7159-b371-d24f347d6689" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019e21fb-1dec-7337-9b67-a2e354c2e4e7" xlink:to="loc_us-gaap_SubsequentEventMember_019e21fb-1dec-7159-b371-d24f347d6689" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramAxis_019fb853-438f-7d21-974c-9e25ad8f9917" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ShareRepurchaseProgramAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_019e21fb-1dec-78ce-9ff8-14391a2c14d3" xlink:to="loc_srt_ShareRepurchaseProgramAxis_019fb853-438f-7d21-974c-9e25ad8f9917" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramDomain_019fb853-438f-7ac8-bb77-2dcd91e6ce18" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ShareRepurchaseProgramDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ShareRepurchaseProgramAxis_019fb853-438f-7d21-974c-9e25ad8f9917" xlink:to="loc_srt_ShareRepurchaseProgramDomain_019fb853-438f-7ac8-bb77-2dcd91e6ce18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MSCIncomeFundRule10b51StockRepurchasePlanAndMainStreetRule10b51PurchasePlanMember_019fb853-e3df-7b0b-8413-82d6e450a76d" xlink:href="msif-20260630.xsd#msif_MSCIncomeFundRule10b51StockRepurchasePlanAndMainStreetRule10b51PurchasePlanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ShareRepurchaseProgramDomain_019fb853-438f-7ac8-bb77-2dcd91e6ce18" xlink:to="loc_msif_MSCIncomeFundRule10b51StockRepurchasePlanAndMainStreetRule10b51PurchasePlanMember_019fb853-e3df-7b0b-8413-82d6e450a76d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MSCIncomeFundRule10b51StockRepurchasePlanMember_019fb859-bad9-7b16-985a-4e989b932da8" xlink:href="msif-20260630.xsd#msif_MSCIncomeFundRule10b51StockRepurchasePlanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_MSCIncomeFundRule10b51StockRepurchasePlanAndMainStreetRule10b51PurchasePlanMember_019fb853-e3df-7b0b-8413-82d6e450a76d" xlink:to="loc_msif_MSCIncomeFundRule10b51StockRepurchasePlanMember_019fb859-bad9-7b16-985a-4e989b932da8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_PurchaseCommitmentsMember_019fb85a-1bc9-7a3d-8f73-489811b47a51" xlink:href="msif-20260630.xsd#msif_PurchaseCommitmentsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_msif_MSCIncomeFundRule10b51StockRepurchasePlanAndMainStreetRule10b51PurchasePlanMember_019fb853-e3df-7b0b-8413-82d6e450a76d" xlink:to="loc_msif_PurchaseCommitmentsMember_019fb85a-1bc9-7a3d-8f73-489811b47a51" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_019e21fb-1dec-7b98-8e4a-3f38d0eff1a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_019e21fb-1dec-78ce-9ff8-14391a2c14d3" xlink:to="loc_us-gaap_SubsequentEventLineItems_019e21fb-1dec-7b98-8e4a-3f38d0eff1a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_019e21fb-1dec-7c8e-9877-6e9bc46faaca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e21fb-1dec-7b98-8e4a-3f38d0eff1a0" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_019e21fb-1dec-7c8e-9877-6e9bc46faaca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019fb7e3-4254-7279-80f8-fba8189c366d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_019e21fb-1dec-7b98-8e4a-3f38d0eff1a0" xlink:to="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019fb7e3-4254-7279-80f8-fba8189c366d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-7ea0-ab72-0af3b38a57c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-77dd-8e64-0c1371d9f3fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-7ea0-ab72-0af3b38a57c8" xlink:to="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-77dd-8e64-0c1371d9f3fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1dec-7625-92f6-36786bf45c33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIdentifierAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-77dd-8e64-0c1371d9f3fd" xlink:to="loc_us-gaap_InvestmentIdentifierAxis_019e21fb-1dec-7625-92f6-36786bf45c33" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1dec-7e97-a0de-29ba9592cf49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-77dd-8e64-0c1371d9f3fd" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1dec-7e97-a0de-29ba9592cf49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-77e4-a8c2-bb02150186c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1dec-7e97-a0de-29ba9592cf49" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-77e4-a8c2-bb02150186c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1dec-7b5c-9b3e-521e4aad9462" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerControlledMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-77e4-a8c2-bb02150186c3" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1dec-7b5c-9b3e-521e4aad9462" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1dec-70d2-8f87-3c332c611630" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-77e4-a8c2-bb02150186c3" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1dec-70d2-8f87-3c332c611630" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-77dd-8e64-0c1371d9f3fd" xlink:to="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRate_019e21fb-1dec-79a5-a4b5-4720a8fea207" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRate"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:to="loc_us-gaap_InvestmentInterestRate_019e21fb-1dec-79a5-a4b5-4720a8fea207" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentBasisSpreadVariableRate_019e21fb-1dec-7681-bad3-b063b065fc7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentBasisSpreadVariableRate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:to="loc_us-gaap_InvestmentBasisSpreadVariableRate_019e21fb-1dec-7681-bad3-b063b065fc7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentInterestRatePaidInKind_019e21fb-1dec-74e0-9381-9cc9bbef1426" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentInterestRatePaidInKind"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:to="loc_us-gaap_InvestmentInterestRatePaidInKind_019e21fb-1dec-74e0-9381-9cc9bbef1426" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_019e21fb-1dec-7742-a122-e3f988b9f642" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesRealizedGainLoss"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesRealizedGainLoss_019e21fb-1dec-7742-a122-e3f988b9f642" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_019e21fb-1dec-7d0e-80b8-e2b2056ea61c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:to="loc_us-gaap_DebtAndEquitySecuritiesUnrealizedGainLoss_019e21fb-1dec-7d0e-80b8-e2b2056ea61c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InterestFeesAndDividendIncomeSecuritiesOperating_019e21fb-1dec-7eee-9fbd-fd7b4bd13d6e" xlink:href="msif-20260630.xsd#msif_InterestFeesAndDividendIncomeSecuritiesOperating"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:to="loc_msif_InterestFeesAndDividendIncomeSecuritiesOperating_019e21fb-1dec-7eee-9fbd-fd7b4bd13d6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward_019e21fb-1dec-7c15-b62b-9f8949472b82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7c5e-b55b-c858dcfdcf3d" xlink:to="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward_019e21fb-1dec-7c15-b62b-9f8949472b82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1dec-7ee5-9a6a-9e99cf4a5f08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward_019e21fb-1dec-7c15-b62b-9f8949472b82" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1dec-7ee5-9a6a-9e99cf4a5f08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_019e21fb-1dec-793f-90d7-ac5994c82a1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward_019e21fb-1dec-7c15-b62b-9f8949472b82" xlink:to="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossAdditions_019e21fb-1dec-793f-90d7-ac5994c82a1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions_019e21fb-1dec-7622-bbd1-efa30c6da2ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward_019e21fb-1dec-7c15-b62b-9f8949472b82" xlink:to="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueGrossReductions_019e21fb-1dec-7622-bbd1-efa30c6da2ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1dec-7501-9e25-847122edc04a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAtFairValueRollForward_019e21fb-1dec-7c15-b62b-9f8949472b82" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1dec-7501-9e25-847122edc04a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesFootnoteDetails" xlink:type="simple" xlink:href="msif-20260630.xsd#ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesFootnoteDetails"/>
  <link:presentationLink xlink:role="http://www.mscincomefund.com/role/ConsolidatedScheduleofInvestmentsInandAdvancestoAffiliatesFootnoteDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-745c-a14b-ce4f78a9f503" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-7c48-be2c-912a66a99795" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAndAdvancesToAffiliatesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesAbstract_019e21fb-1dec-745c-a14b-ce4f78a9f503" xlink:to="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-7c48-be2c-912a66a99795" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1dec-7a11-946e-66b0e56ddf1d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-7c48-be2c-912a66a99795" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1dec-7a11-946e-66b0e56ddf1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-7f14-b246-bc98d3bca34d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIssuerAffiliationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationAxis_019e21fb-1dec-7a11-946e-66b0e56ddf1d" xlink:to="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-7f14-b246-bc98d3bca34d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1dec-7836-b8dc-424c8180d60d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-7f14-b246-bc98d3bca34d" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerNoncontrolledMember_019e21fb-1dec-7836-b8dc-424c8180d60d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1dec-704b-88cf-4556be14fadc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentAffiliatedIssuerControlledMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentIssuerAffiliationDomain_019e21fb-1dec-7f14-b246-bc98d3bca34d" xlink:to="loc_us-gaap_InvestmentAffiliatedIssuerControlledMember_019e21fb-1dec-704b-88cf-4556be14fadc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019e21fb-1dec-7336-9c03-6ac18b861eb8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-7c48-be2c-912a66a99795" xlink:to="loc_srt_StatementGeographicalAxis_019e21fb-1dec-7336-9c03-6ac18b861eb8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019e21fb-1dec-744f-89fd-422359422e55" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_019e21fb-1dec-7336-9c03-6ac18b861eb8" xlink:to="loc_srt_SegmentGeographicalDomain_019e21fb-1dec-744f-89fd-422359422e55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MidwestRegionMember_019e21fb-1dec-712c-acec-f4437ea15091" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MidwestRegionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1dec-744f-89fd-422359422e55" xlink:to="loc_us-gaap_MidwestRegionMember_019e21fb-1dec-712c-acec-f4437ea15091" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NortheastRegionMember_019e21fb-1dec-7392-96e5-514e0d139c3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NortheastRegionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1dec-744f-89fd-422359422e55" xlink:to="loc_us-gaap_NortheastRegionMember_019e21fb-1dec-7392-96e5-514e0d139c3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoutheastRegionMember_019e21fb-1dec-7b88-86ae-13421dd32f71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoutheastRegionMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1dec-744f-89fd-422359422e55" xlink:to="loc_us-gaap_SoutheastRegionMember_019e21fb-1dec-7b88-86ae-13421dd32f71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SouthwestRegionMember_019e21fb-1dec-7678-8ae8-b9c0fc73f3f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SouthwestRegionMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1dec-744f-89fd-422359422e55" xlink:to="loc_us-gaap_SouthwestRegionMember_019e21fb-1dec-7678-8ae8-b9c0fc73f3f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WestRegionMember_019e21fb-1dec-7d2c-ad77-bdddd5fd270a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WestRegionMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_019e21fb-1dec-744f-89fd-422359422e55" xlink:to="loc_us-gaap_WestRegionMember_019e21fb-1dec-7d2c-ad77-bdddd5fd270a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7fea-8d85-23787f8c8133" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentsInAndAdvancesToAffiliatesTable_019e21fb-1dec-7c48-be2c-912a66a99795" xlink:to="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7fea-8d85-23787f8c8133" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1dec-7bbb-8fa2-e2527fb198ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7fea-8d85-23787f8c8133" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_019e21fb-1dec-7bbb-8fa2-e2527fb198ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/netLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_InvestmentsInAndAdvancesToAffiliatesPercentageOfNetAssets_019e21fb-1dec-7db4-b985-1b33dba9412a" xlink:href="msif-20260630.xsd#msif_InvestmentsInAndAdvancesToAffiliatesPercentageOfNetAssets"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_019e21fb-1dec-7fea-8d85-23787f8c8133" xlink:to="loc_msif_InvestmentsInAndAdvancesToAffiliatesPercentageOfNetAssets_019e21fb-1dec-7db4-b985-1b33dba9412a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#AwardTimingDisclosure"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgDiscLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgDiscLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgMnpiDiscTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMnpiDiscTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgMethodTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMethodTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgPredtrmndFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgPredtrmndFlag"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgPredtrmndFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgMnpiCnsdrdFlag"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgMnpiCnsdrdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardTmgHowMnpiCnsdrdTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MnpiDiscTimedForCompValFlag"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_MnpiDiscTimedForCompValFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardsCloseToMnpiDiscTableTextBlock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardsCloseToMnpiDiscTable"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardsCloseToMnpiDiscTable" xlink:to="loc_us-gaap_AwardTypeAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_EmployeeStockOptionMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockAppreciationRightsSARSMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_StockAppreciationRightsSARSMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardsCloseToMnpiDiscIndName"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardsCloseToMnpiDiscIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardUndrlygSecuritiesAmt"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardUndrlygSecuritiesAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardExrcPrice" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardExrcPrice"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardExrcPrice" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AwardGrantDateFairValue" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AwardGrantDateFairValue"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_AwardGrantDateFairValue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_UndrlygSecurityMktPriceChngPct"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AwardTmgDiscLineItems" xlink:to="loc_ecd_UndrlygSecurityMktPriceChngPct" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ErrCompDisclosure"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/ErrCompDisclosure" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RecoveryOfErrCompDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ErrCompRecoveryTable" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ErrCompRecoveryTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ErrCompRecoveryTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDateAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RestatementDateAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ErrCompRecoveryTable" xlink:to="loc_ecd_RestatementDateAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ErrCompRecoveryTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonNeosMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonNeosMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_ecd_NonNeosMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDeterminationDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RestatementDeterminationDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_RestatementDeterminationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AggtErrCompAmt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_AggtErrCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ErrCompAnalysisTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ErrCompAnalysisTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ErrCompAnalysisTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_StkPrcOrTsrEstimationMethodTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingAggtErrCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OutstandingAggtErrCompAmt"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingAggtErrCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AggtErrCompNotYetDeterminedTextBlock"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryIndName"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OutstandingRecoveryIndName"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingRecoveryIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OutstandingRecoveryCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OutstandingRecoveryCompAmt"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_OutstandingRecoveryCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_RestatementDoesNotRequireRecoveryTextBlock"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_RecoveryOfErrCompDisclosureLineItems" xlink:to="loc_ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/PvpDisclosure" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#PvpDisclosure"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/PvpDisclosure" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PayVsPerformanceDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTable" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PvpTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PvpTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ExecutiveCategoryAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ExecutiveCategoryAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_ExecutiveCategoryAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllExecutiveCategoriesMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllExecutiveCategoriesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_ExecutiveCategoryAxis" xlink:to="loc_ecd_AllExecutiveCategoriesMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllExecutiveCategoriesMember" xlink:to="loc_ecd_PeoMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonPeoNeoMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllExecutiveCategoriesMember" xlink:to="loc_ecd_NonPeoNeoMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToCompAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_AdjToCompAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllAdjToCompMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllAdjToCompMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AdjToCompAxis" xlink:to="loc_ecd_AllAdjToCompMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllAdjToCompMember" xlink:to="loc_ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AggtPnsnAdjsSvcCstMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllAdjToCompMember" xlink:to="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnAdjsSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PnsnAdjsSvcCstMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:to="loc_ecd_PnsnAdjsSvcCstMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnAdjsPrrSvcCstMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PnsnAdjsPrrSvcCstMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AggtPnsnAdjsSvcCstMember" xlink:to="loc_ecd_PnsnAdjsPrrSvcCstMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EqtyAwrdsAdjsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllAdjToCompMember" xlink:to="loc_ecd_EqtyAwrdsAdjsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsMember" xlink:to="loc_ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsMember" xlink:to="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember" xlink:to="loc_ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MeasureAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PvpTable" xlink:to="loc_ecd_MeasureAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PvpTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PvpTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PvpTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CoSelectedMeasureName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CoSelectedMeasureName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CoSelectedMeasureName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NamedExecutiveOfficersFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NamedExecutiveOfficersFnTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NamedExecutiveOfficersFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeerGroupIssuersFnTextBlock"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeerGroupIssuersFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_ChangedPeerGroupFnTextBlock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_ChangedPeerGroupFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoTotalCompAmt"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoTotalCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoActuallyPaidCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoActuallyPaidCompAmt"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoActuallyPaidCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToPeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToPeoCompFnTextBlock"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToPeoCompFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonPeoNeoAvgTotalCompAmt"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonPeoNeoAvgTotalCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonPeoNeoAvgCompActuallyPaidAmt"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToNonPeoNeoCompFnTextBlock"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EquityValuationAssumptionDifferenceFnTextBlock"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CompActuallyPaidVsNetIncomeTextBlock"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TotalShareholderRtnVsPeerGroupTextBlock"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CompActuallyPaidVsOtherMeasureTextBlock"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TabularListTableTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TabularListTableTextBlock"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TabularListTableTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TotalShareholderRtnAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TotalShareholderRtnAmt"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_TotalShareholderRtnAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeerGroupTotalShareholderRtnAmt"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeerGroupTotalShareholderRtnAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_CoSelectedMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_CoSelectedMeasureAmt"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_CoSelectedMeasureAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_OtherPerfMeasureAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_OtherPerfMeasureAmt"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_OtherPerfMeasureAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AdjToCompAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AdjToCompAmt"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_AdjToCompAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PeoName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PeoName"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PeoName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MeasureName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MeasureName"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_MeasureName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonGaapMeasureDescriptionTextBlock"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_NonGaapMeasureDescriptionTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Additional402vDisclosureTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_Additional402vDisclosureTextBlock"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_Additional402vDisclosureTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_PnsnBnftsAdjFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_PnsnBnftsAdjFnTextBlock"/>
    <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_PnsnBnftsAdjFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_EqtyAwrdsAdjFnTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_EqtyAwrdsAdjFnTextBlock"/>
    <link:presentationArc order="31" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems" xlink:to="loc_ecd_EqtyAwrdsAdjFnTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#InsiderTradingArrangements"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTradingArrLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_InsiderTradingArrLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrByIndTable" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TradingArrByIndTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TradingArrByIndTable" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TradingArrAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TradingArrAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrByIndTable" xlink:to="loc_ecd_TradingArrAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllTradingArrangementsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllTradingArrangementsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrAxis" xlink:to="loc_ecd_AllTradingArrangementsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_IndividualAxis" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_IndividualAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_TradingArrByIndTable" xlink:to="loc_ecd_IndividualAxis" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_AllIndividualsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_IndividualAxis" xlink:to="loc_ecd_AllIndividualsMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_MtrlTermsOfTrdArrTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_MtrlTermsOfTrdArrTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndName" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrIndName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrIndName" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrIndTitle" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrIndTitle"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrIndTitle" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_Rule10b51ArrAdoptedFlag"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_Rule10b51ArrAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonRule10b51ArrAdoptedFlag"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_NonRule10b51ArrAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrAdoptionDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrAdoptionDate"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrAdoptionDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_Rule10b51ArrTrmntdFlag"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_Rule10b51ArrTrmntdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_NonRule10b51ArrTrmntdFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_NonRule10b51ArrTrmntdFlag"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_NonRule10b51ArrTrmntdFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrTerminationDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrTerminationDate"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrTerminationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrExpirationDate" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrExpirationDate"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrExpirationDate" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrDuration" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrDuration"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrDuration" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_TrdArrSecuritiesAggAvailAmt"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingArrLineItems" xlink:to="loc_ecd_TrdArrSecuritiesAggAvailAmt" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#InsiderTradingPoliciesProc"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_InsiderTradingPoliciesProcLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_InsiderTrdPoliciesProcAdoptedFlag"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:to="loc_ecd_InsiderTrdPoliciesProcAdoptedFlag" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:href="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd#ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_InsiderTradingPoliciesProcLineItems" xlink:to="loc_ecd_InsiderTrdPoliciesProcNotAdoptedTextBlock" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/cef/role/N2" xlink:type="simple" xlink:href="https://xbrl.sec.gov/cef/2026/cef-2026.xsd#N2"/>
  <link:presentationLink xlink:role="http://xbrl.sec.gov/cef/role/N2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_SPVFacilityMember" xlink:href="msif-20260630.xsd#msif_SPVFacilityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="loc_msif_SPVFacilityMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_CorporateFacilityMember" xlink:href="msif-20260630.xsd#msif_CorporateFacilityMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="loc_msif_CorporateFacilityMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_MainStreetFacilityMember" xlink:href="msif-20260630.xsd#msif_MainStreetFacilityMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="loc_msif_MainStreetFacilityMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_October2026NotesMember" xlink:href="msif-20260630.xsd#msif_October2026NotesMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="loc_msif_October2026NotesMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
    <link:loc xlink:type="locator" xlink:label="loc_msif_May2029NotesMember" xlink:href="msif-20260630.xsd#msif_May2029NotesMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="loc_msif_May2029NotesMember" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/label"/>
  </link:presentationLink>
</link:linkbase>
