Use nethost.dll to find dotnet in ANCM

.vscode/settings.json

@@ -4,6 +4,69 @@
         "*.*proj": "xml",
         "*.props": "xml",
         "*.targets": "xml",
-        "*.tasks": "xml"
+        "*.tasks": "xml",
+        "filesystem": "cpp",
+        "array": "cpp",
+        "initializer_list": "cpp",
+        "list": "cpp",
+        "random": "cpp",
+        "type_traits": "cpp",
+        "vector": "cpp",
+        "xhash": "cpp",
+        "xstring": "cpp",
+        "xtree": "cpp",
+        "xutility": "cpp",
+        "algorithm": "cpp",
+        "atomic": "cpp",
+        "cctype": "cpp",
+        "chrono": "cpp",
+        "cmath": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "ctime": "cpp",
+        "cwchar": "cpp",
+        "exception": "cpp",
+        "fstream": "cpp",
+        "functional": "cpp",
+        "iomanip": "cpp",
+        "ios": "cpp",
+        "iosfwd": "cpp",
+        "istream": "cpp",
+        "iterator": "cpp",
+        "limits": "cpp",
+        "locale": "cpp",
+        "map": "cpp",
+        "memory": "cpp",
+        "new": "cpp",
+        "optional": "cpp",
+        "ostream": "cpp",
+        "ratio": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "string": "cpp",
+        "system_error": "cpp",
+        "thread": "cpp",
+        "tuple": "cpp",
+        "typeinfo": "cpp",
+        "unordered_map": "cpp",
+        "utility": "cpp",
+        "xfacet": "cpp",
+        "xiosbase": "cpp",
+        "xlocale": "cpp",
+        "xlocbuf": "cpp",
+        "xlocinfo": "cpp",
+        "xlocmes": "cpp",
+        "xlocmon": "cpp",
+        "xlocnum": "cpp",
+        "xloctime": "cpp",
+        "xmemory": "cpp",
+        "xstddef": "cpp",
+        "xtr1common": "cpp",
+        "iostream": "cpp",
+        "set": "cpp",
+        "sstream": "cpp"
     }
 }

eng/Dependencies.props

@@ -184,6 +184,9 @@ and are generated based on the last package release.
     <LatestPackageReference Include="xunit.assert" Version="$(XunitAssertPackageVersion)" />
     <LatestPackageReference Include="xunit.extensibility.core" Version="$(XunitExtensibilityCorePackageVersion)" />
     <LatestPackageReference Include="xunit.extensibility.execution" Version="$(XunitExtensibilityExecutionPackageVersion)" />
+
+    <LatestPackageReference Include="runtime.win-x64.Microsoft.NETCore.DotNetAppHost" Version="$(MicrosoftNetCoreDotNetAppHostPackageVersion)" />
+    <LatestPackageReference Include="runtime.win-x86.Microsoft.NETCore.DotNetAppHost" Version="$(MicrosoftNetCoreDotNetAppHostPackageVersion)" />
   </ItemGroup>
 
 </Project>

eng/Version.Details.xml

@@ -405,6 +405,10 @@
       <Uri>https://github.com/dotnet/core-setup</Uri>
       <Sha>2bb2dcaeffb1dfeda077354449868ddac254bc3d</Sha>
     </Dependency>
+    <Dependency Name="Microsoft.NETCore.DotNetAppHost" Version="3.0.0-preview7-27810-02">
+      <Uri>https://github.com/dotnet/core-setup</Uri>
+      <Sha>3f9156d5d9b5ae4b100baeaa75011aaee88a3f4b</Sha>
+    </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
     <!-- Listed explicitly to workaround https://github.com/dotnet/cli/issues/10528 -->

eng/Versions.props

@@ -57,7 +57,9 @@
     <MicrosoftExtensionsDependencyModelPackageVersion>3.0.0-preview8-27914-06</MicrosoftExtensionsDependencyModelPackageVersion>
     <MicrosoftNETCoreAppRefPackageVersion>3.0.0-preview8-27914-06</MicrosoftNETCoreAppRefPackageVersion>
     <MicrosoftNETCoreAppRuntimewinx64PackageVersion>3.0.0-preview8-27914-06</MicrosoftNETCoreAppRuntimewinx64PackageVersion>
+    <MicrosoftNetCoreDotNetAppHostPackageVersion>3.0.0-preview8-27914-06</MicrosoftNetCoreDotNetAppHostPackageVersion>
     <NETStandardLibraryRefPackageVersion>2.1.0-preview8-27914-06</NETStandardLibraryRefPackageVersion>
+
     <!-- Packages from dotnet/corefx -->
     <MicrosoftBclAsyncInterfacesPackageVersion>1.0.0-preview8.19364.1</MicrosoftBclAsyncInterfacesPackageVersion>
     <MicrosoftCSharpPackageVersion>4.6.0-preview8.19364.1</MicrosoftCSharpPackageVersion>

eng/targets/Cpp.Common.targets

@@ -12,6 +12,7 @@
   <Target Name="Pack" />
   <Target Name="Restore" />
   <Target Name="ResolveNuGetPackageAssets" />
+
   <Target Name="Test" Condition="'$(IsTestProject)' == 'true'" >
     <Warning Condition="'$(TestProjectSkipReason)' != ''" Text="Skipped $(MSBuildProjectFileName): $(TestProjectSkipReason)" />
     <Exec Condition="'$(TestProjectSkipReason)' == ''" Command="&quot;$(TargetPath)&quot;" />

src/Installers/Windows/AspNetCoreModule-Setup/ANCMIISExpressV2/ancm_iis_expressv2.wxs

@@ -35,10 +35,12 @@
     <?define SchemaGuid = "ab582af2-d6c0-43f7-8412-76a19c65d7f2" ?>
     <?define SchemaGuid32 = "e629b31a-3d56-4b5c-959c-586fc1c55599" ?>
     <?define AspNetCoreV2ProgramFilesTargetPath = "$(var.AspNetCoreV2.TargetPath)" ?>
+    <?define NetHostProgramFilesTargetPath = "$(var.NetHost64bit)" ?>
     <?define AspNetCoreV2HandlerProgramFilesTargetPath = "$(var.AspNetCoreV2Handler.TargetPath)" ?>
 <?else ?>
     <?define SchemaGuid = "e629b31a-3d56-4b5c-959c-586fc1c55599" ?>
     <?define AspNetCoreV2ProgramFilesTargetPath = "$(var.AspNetCoreV2WoW64.TargetPath)" ?>
+    <?define NetHostProgramFilesTargetPath = "$(var.NetHost32bit)" ?>
     <?define AspNetCoreV2HandlerProgramFilesTargetPath = "$(var.AspNetCoreV2HandlerWoW64.TargetPath)" ?>
 <?endif ?>
 
@@ -177,6 +179,14 @@
                 <RegistryValue Name="TypesSupported" Type="integer" Value="7"/>
               </RegistryKey>
             </Component>
+            <Component Id="NetHost" Guid="2aa57b03-f4aa-4ed2-a3c1-4992507b299f" Win64="$(var.IsWin64)">
+                <File Id="NetHostDll"
+                    Name="nethost.dll"
+                    Source="$(var.NetHostProgramFilesTargetPath)"
+                    DiskId="1"
+                    Vital="yes">
+                </File>
+            </Component>
             <Directory Id="HandlerVersionDir" Name="$(var.ANCMFolderVersion)" >
               <Component Id="AspNetCoreModuleHandler" Guid="559EF726-B25C-480F-AFA4-32D0BA8B2376" Win64="$(var.IsWin64)">
                     <File Id="AspNetCoreModuleHandlerDll"
@@ -219,6 +229,14 @@
                     <RegistryValue Name="EventMessageFile" Type="expandable" Value="[#AspNetCoreModuleDll.wow]"/>
                     <RegistryValue Name="TypesSupported" Type="integer" Value="7"/>
                   </RegistryKey>
+                </Component>
+                 <Component Id="NetHost.wow" Guid="877bc07b-1422-464f-b71c-8c1569bc0f54" Win64="no">
+                  <File Id="NetHostDll.wow"
+                        Name="nethost.dll"
+                        Source="$(var.NetHost32bit)"
+                        DiskId="1"
+                        Vital="yes">
+                  </File>
                 </Component>
                 <Directory Id="HandlerVersionDir32" Name="$(var.ANCMFolderVersion)" >
                   <Component Id="AspNetCoreModuleHandler.wow" Guid="0A8EDB50-7D85-4825-8010-D27EFAF061B6" Win64="no">
@@ -251,10 +269,12 @@
         <!-- Feature Definition -->
         <Feature Id="AspNetCoreModuleFeature" Title="!(loc.AspNetCoreModuleProductTitle)" Description="!(loc.AspNetCoreModuleProductDescription)" Level="1">
             <ComponentRef Id="AspNetCoreModule"/>
+            <ComponentRef Id="NetHost"/>
             <ComponentRef Id="AspNetCoreModuleHandler"/>
             <ComponentRef Id="AspNetCoreSchema"/>
             <?if $(var.Platform) = "x64" ?>
                 <ComponentRef Id="AspNetCoreModule.wow"/>
+                <ComponentRef Id="NetHost.wow"/>
                 <ComponentRef Id="AspNetCoreModuleHandler.wow"/>
                 <ComponentRef Id="AspNetCoreSchema.wow"/>
             <?endif ?>

src/Installers/Windows/AspNetCoreModule-Setup/ANCMV2/aspnetcoremodulev2.wxs

@@ -27,9 +27,11 @@
 <?if $(var.Platform) = "x64" ?>
     <?define AspNetCoreV2ProgramFilesTargetPath = "$(var.AspNetCoreV2.TargetPath)" ?>
     <?define AspNetCoreV2HandlerProgramFilesTargetPath = "$(var.AspNetCoreV2Handler.TargetPath)" ?>
+    <?define NetHostProgramFilesTargetPath = "$(var.NetHost64bit)" ?>
 <?else ?>
     <?define AspNetCoreV2ProgramFilesTargetPath = "$(var.AspNetCoreV2WoW64.TargetPath)" ?>
     <?define AspNetCoreV2HandlerProgramFilesTargetPath = "$(var.AspNetCoreV2HandlerWoW64.TargetPath)" ?>
+    <?define NetHostProgramFilesTargetPath = "$(var.NetHost32bit)" ?>
 <?endif ?>
 
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:dep="http://schemas.microsoft.com/wix/DependencyExtension">
@@ -144,7 +146,7 @@
                <Directory Id="IISModuleDirectory" Name="IIS">
                    <Directory Id="INSTALLLOCATION" ShortName="ANCM" Name="Asp.Net Core Module">
                        <Directory Id="VersionDir" Name="$(var.ProductVersionString)">
-                           <Component Id="AspNetCoreModuleV2" Guid="3a692941-59be-43cf-98a8-6ed01b12a519" Win64="$(var.IsWin64)">
+                            <Component Id="AspNetCoreModuleV2" Guid="3a692941-59be-43cf-98a8-6ed01b12a519" Win64="$(var.IsWin64)">
                                 <File Id="AspNetCoreModuleV2Dll"
                                     Name="aspnetcorev2.dll"
                                     Source="$(var.AspNetCoreV2ProgramFilesTargetPath)"
@@ -156,6 +158,16 @@
                                    <RegistryValue Name="EventMessageFile" Type="expandable" Value="[#AspNetCoreModuleV2Dll]"/>
                                    <RegistryValue Name="TypesSupported" Type="integer" Value="7"/>
                                </RegistryKey>
+                            </Component>
+
+                            <Component Id="NetHost" Guid="f86c7a76-a437-4059-9962-c1de6267e961" Win64="$(var.IsWin64)">
+                                <File Id="NetHostDll"
+                                    Name="nethost.dll"
+                                    Source="$(var.NetHostProgramFilesTargetPath)"
+                                    DiskId="1"
+                                    Vital="yes">
+                                </File>
+                               <RemoveFile Id="NetHostDll_Remove" Name="nethost.dll" On="install" />
                            </Component>
                            <Directory Id="HandlerVersionDir" Name="$(var.ANCMFolderVersion)" >
                                <Component Id="AspNetCoreModuleHandler" Guid="4b62060a-deb8-4de3-9557-9c0be21dc844" Win64="$(var.IsWin64)">
@@ -200,6 +212,16 @@
                                     <RegistryValue Name="TypesSupported" Type="integer" Value="7"/>
                                 </RegistryKey>
                             </Component>
+
+                            <Component Id="NetHost.wow" Guid="564a522e-c9cc-4f47-b641-9bbb7797fc36" Win64="no">
+                                <File Id="NetHostDll.wow"
+                                    Name="nethost.dll"
+                                    Source="$(var.NetHost32bit)"
+                                    DiskId="1"
+                                    Vital="yes">
+                                </File>
+                                <RemoveFile Id="NetHostDll.wow_Remove" Name="nethost.dll" On="install" />
+                            </Component>
                             <Directory Id="HandlerVersionDir32" Name="$(var.ANCMFolderVersion)" SourceName="WowOnly">
                                 <Component Id="AspNetCoreModuleHandler.wow" Guid="d927e5d3-c8b2-400c-b85c-ae5c2772d6c3" Win64="no">
                                     <File Id="AspNetCoreModuleHandlerDll.wow"
@@ -221,11 +243,13 @@
         <Feature Id="AspNetCoreModuleFeature" Title="!(loc.AspNetCoreModuleProductTitle)" Description="!(loc.AspNetCoreModuleProductDescription)" Level="1">
             <ComponentRef Id="C_DiscoverabilityKey"/>
             <ComponentRef Id="AspNetCoreModuleV2"/>
+            <ComponentRef Id="NetHost"/>
             <ComponentRef Id="AspNetCoreModuleHandler"/>
             <ComponentRef Id="AspNetCoreSchemaV2"/>
             <?if $(var.Platform) = "x64" ?>
             <ComponentRef Id="C_DiscoverabilityKeyWow"/>
             <ComponentRef Id="AspNetCoreModuleV2.wow"/>
+            <ComponentRef Id="NetHost.wow"/>
             <ComponentRef Id="AspNetCoreModuleHandler.wow"/>
             <?endif ?>
         </Feature>

src/Installers/Windows/AspNetCoreModule-Setup/Directory.Build.props

@@ -36,6 +36,8 @@
     <DefineConstants>
       AspNetCoreSchemaPath=$(_ServerIISBasePath)AspNetCoreModuleV2\AspNetCore\aspnetcore_schema_v2.xml;
       AspNetCoreMofPath=$(_ServerIISBasePath)AspNetCoreModuleV2\AspNetCore\ancm.mof;
+      NetHost64bit=$(Pkgruntime_win-x64_Microsoft_NETCore_DotNetAppHost)\runtimes\win-x64\native\nethost.dll;
+      NetHost32bit=$(Pkgruntime_win-x86_Microsoft_NETCore_DotNetAppHost)\runtimes\win-x86\native\nethost.dll;
       $(DefineConstants)
     </DefineConstants>
   </PropertyGroup>
@@ -70,5 +72,7 @@
       <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
       <SetPlatform>Platform=Win32</SetPlatform>
     </ProjectReference>
+    <PackageReference Include="runtime.win-x64.Microsoft.NETCore.DotNetAppHost" Version="$(MicrosoftNetCoreDotNetAppHostPackageVersion)" GeneratePathProperty="true" />
+    <PackageReference Include="runtime.win-x86.Microsoft.NETCore.DotNetAppHost" Version="$(MicrosoftNetCoreDotNetAppHostPackageVersion)" GeneratePathProperty="true" />
   </ItemGroup>
 </Project>

src/Servers/IIS/AspNetCoreModuleV2/AspNetCore/HandlerResolver.cpp

@@ -65,6 +65,7 @@ HandlerResolver::LoadRequestHandlerAssembly(const IHttpApplication &pApplication
                 pApplication.GetApplicationPhysicalPath(),
                 pConfiguration.QueryArguments(),
                 errorContext,
+                m_hModule,
                 options));
 
             location = options->GetDotnetExeLocation();

src/Servers/IIS/AspNetCoreModuleV2/CommonLib/HostFxrResolutionResult.cpp

@@ -24,6 +24,7 @@ HRESULT HostFxrResolutionResult::Create(
         _In_ const std::wstring& pcwzApplicationPhysicalPath,
         _In_ const std::wstring& pcwzArguments,
         _In_ ErrorContext& errorContext,
+        _In_ HMODULE aspNetCoreModule,
         _Out_ std::unique_ptr<HostFxrResolutionResult>& ppWrapper)
 {
     std::filesystem::path knownDotnetLocation;
@@ -44,7 +45,8 @@ HRESULT HostFxrResolutionResult::Create(
                 hostFxrDllPath,
                 knownDotnetLocation,
                 arguments,
-                errorContext);
+                errorContext,
+                aspNetCoreModule);
 
         LOG_INFOF(L"Parsed hostfxr options: dotnet location: '%ls' hostfxr path: '%ls' arguments:", knownDotnetLocation.c_str(), hostFxrDllPath.c_str());
         for (size_t i = 0; i < arguments.size(); i++)

src/Servers/IIS/AspNetCoreModuleV2/CommonLib/HostFxrResolutionResult.h

@@ -47,6 +47,7 @@ class HostFxrResolutionResult
          _In_  const std::wstring& pcwzApplicationPhysicalPath,
          _In_  const std::wstring& pcwzArguments,
          _In_  ErrorContext& errorContext,
+         _In_  HMODULE aspNetCoreModule,
          _Out_ std::unique_ptr<HostFxrResolutionResult>& ppWrapper);
 
 private: