Build via ProjectRefs

Author: wtgodbe

eng/Build.props

@@ -264,6 +264,7 @@
         <_VcxTargetPlatform Condition="'$(TargetArchitecture)' == 'arm64'">ARM64</_VcxTargetPlatform>
       </PropertyGroup>
 
+      <!-- In the VMR, we build the installers entirely via HostingBundle ProjectReferences in pass 2 -->
       <ItemGroup Condition="'$(DotNetBuild)' != 'true' and '$(_BuildWindowsInstallers)' == 'true' ">
         <!-- Build the ANCM custom action -->
         <InstallerProject Include="$(RepoRoot)src\Installers\Windows\AspNetCoreModule-Setup\CustomAction\aspnetcoreCA.vcxproj" AdditionalProperties="Platform=x64" />
@@ -282,14 +283,6 @@
         <InstallerProject Include="$(RepoRoot)src\Installers\Windows\WindowsHostingBundle\WindowsHostingBundle.wixproj" AdditionalProperties="Platform=x86" />
       </ItemGroup>
 
-      <!--
-        In a vertical build, only build the MSIs for the current vertical that aren't used in the hosting bundle in the first pass
-        and build the hosting bundle and its dependencies in the second pass.
-      -->
-      <ItemGroup Condition="'$(DotNetBuild)' == 'true' and ('$(DotNetBuildPass)' == '' or '$(DotNetBuildPass)' == '1') and '$(_BuildWindowsInstallers)' == 'true' and '$(TargetArchitecture)' == 'x86'" >
-        <InstallerProject Include="$(RepoRoot)src\Installers\Windows\AspNetCoreModule-Setup\ANCMIISExpressV2\AncmIISExpressV2.wixproj" AdditionalProperties="Platform=$(TargetArchitecture)" />
-      </ItemGroup>
-
       <ItemGroup>
         <ProjectToBuild Condition=" '$(BuildInstallers)' == 'true'" Include="@(InstallerProject)" BuildStep="installer" />
       </ItemGroup>

src/Installers/Windows/WindowsHostingBundle/WindowsHostingBundle.wixproj

@@ -72,6 +72,12 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(DotNetBuild)' == 'true'" >
+    <ProjectReference Include="..\AspNetCoreModule-Setup\ANCMIISExpressV2\AncmIISExpressV2.wixproj">
+      <SetPlatform>Platform=x86</SetPlatform>
+      <Name>AspNetCoreModuleV2IISExpress_x86</Name>
+      <Private>True</Private>
+      <DoNotHarvest>true</DoNotHarvest>
+    </ProjectReference>
     <ProjectReference Include="..\AspNetCoreModule-Setup\ANCMIISExpressV2\AncmIISExpressV2.wixproj">
       <SetPlatform>Platform=x64</SetPlatform>
       <Name>AspNetCoreModuleV2IISExpress_x64</Name>