<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Mon Aug 10 20:16:18 UTC 2026 -->
<linkbase xmlns="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">
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/cef/2024/cef-2024.xsd#N2" roleURI="http://xbrl.sec.gov/cef/role/N2"/>
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    <loc xlink:type="locator" xlink:label="FounderClassMember" xlink:href="iisf-20250331.xsd#iisf_FounderClassMember"/>
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="FounderClassMember" order="3.0"/>
    <loc xlink:type="locator" xlink:label="InvestorClassMember" xlink:href="iisf-20250331.xsd#iisf_InvestorClassMember"/>
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    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="InvestorClassMember" order="5.0"/>
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