From 9ec724b706070ba38a2cb2ef3e15da60244f7215 Mon Sep 17 00:00:00 2001
From: Sergio Pedri <sergio0694@live.com>
Date: Wed, 29 Jul 2026 11:32:43 -0700
Subject: [PATCH] Hide WinRT.Host runtime assets in Solution Explorer

The WinRT.Host.dll, WinRT.Host.dll.mui and WinRT.Host.Shim.dll items are
build/runtime assets copied to the output directory, not files users are
meant to interact with. Mark them with Visible=false so they no longer
show up as project items in Solution Explorer, while still being copied
to the output directory as before.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 0b96f4f1-0434-43cd-b44a-dc4a132fb863
---
 nuget/Microsoft.Windows.CsWinRT.Authoring.targets | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nuget/Microsoft.Windows.CsWinRT.Authoring.targets b/nuget/Microsoft.Windows.CsWinRT.Authoring.targets
index ae7f61fb3..078aaa5c8 100644
--- a/nuget/Microsoft.Windows.CsWinRT.Authoring.targets
+++ b/nuget/Microsoft.Windows.CsWinRT.Authoring.targets
@@ -64,24 +64,29 @@ Copyright (C) Microsoft Corporation. All rights reserved.
   <!--
     For Project Reference consumers, copy the necessary WinRT DLLs to output directory.
     Only include these if we are not generating native exports for NativeAOT.
+    These are build/runtime assets, so they're marked as not visible to avoid
+    showing them as project items in Solution Explorer.
   --> 
   <ItemGroup Condition="'$(CsWinRTAotExportsEnabled)' != 'true'"> 
 
     <None Condition="Exists('$(CsWinRTPath)hosting\net10.0\WinRT.Host.Shim.dll')" Include="$(CsWinRTPath)hosting\net10.0\WinRT.Host.Shim.dll">
       <TargetPath>WinRT.Host.Shim.dll</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>false</Visible>
     </None>
 
     <None Condition="Exists('$(CsWinRTPath)hosting\$(CsWinRTAuthoring_Platform)\native\WinRT.Host.dll')" 
           Include="$(CsWinRTPath)hosting\$(CsWinRTAuthoring_Platform)\native\WinRT.Host.dll">
       <TargetPath>WinRT.Host.dll</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>false</Visible>
     </None>
 
     <None Condition="Exists('$(CsWinRTPath)hosting\$(CsWinRTAuthoring_Platform)\native\en-US\WinRT.Host.dll.mui')"
           Include="$(CsWinRTPath)hosting\$(CsWinRTAuthoring_Platform)\native\en-US\WinRT.Host.dll.mui">
       <TargetPath>WinRT.Host.dll.mui</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>false</Visible>
     </None>
 
  </ItemGroup>