diff --git a/eng/Subsets.props b/eng/Subsets.props
index fc751194d2459..39ecf822395bc 100644
--- a/eng/Subsets.props
+++ b/eng/Subsets.props
@@ -51,7 +51,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <DefaultCoreClrSubsets>clr.native+linuxdac+clr.corelib+clr.tools+clr.nativecorelib+clr.packages+clr.nativeaotlibs+clr.crossarchtools</DefaultCoreClrSubsets>
+    <DefaultCoreClrSubsets>clr.native+linuxdac+clr.corelib+clr.tools+clr.nativecorelib+clr.packages+clr.nativeaotlibs+clr.crossarchtools+host</DefaultCoreClrSubsets>
     <!-- Even on platforms that do not support the CoreCLR runtime, we still want to build ilasm/ildasm. -->
     <DefaultCoreClrSubsets Condition="'$(PrimaryRuntimeFlavor)' != 'CoreCLR'">clr.iltools+clr.packages</DefaultCoreClrSubsets>
 
@@ -61,7 +61,8 @@
     <DefaultMonoSubsets Condition="'$(MonoAOTEnableLLVM)' == 'true' and '$(MonoAOTLLVMDir)' == ''">mono.llvm+</DefaultMonoSubsets>
     <DefaultMonoSubsets Condition="'$(TargetOS)' == 'Browser'">$(DefaultMonoSubsets)mono.wasmruntime+</DefaultMonoSubsets>
     <DefaultMonoSubsets Condition="'$(MonoCrossAOTTargetOS)' != ''">$(DefaultMonoSubsets)mono.aotcross+</DefaultMonoSubsets>
-    <DefaultMonoSubsets>$(DefaultMonoSubsets)mono.runtime+mono.corelib+mono.packages</DefaultMonoSubsets>
+    <DefaultMonoSubsets>$(DefaultMonoSubsets)mono.runtime+mono.corelib+mono.packages+</DefaultMonoSubsets>
+    <DefaultMonoSubsets Condition="'$(TargetsMobile)' != 'true'">$(DefaultMonoSubsets)host+</DefaultMonoSubsets>
 
     <DefaultLibrariesSubsets Condition="'$(BuildTargetFramework)' == '$(NetCoreAppCurrent)' or
                                         '$(BuildTargetFramework)' == '' or
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index b96e02153688a..f4974c832f3fc 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -210,14 +210,6 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>214ca6db481923aa49bac2d2b75b9aca4041b304</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.DotNetHost" Version="7.0.0-rc.1.22374.4">
-      <Uri>https://github.com/dotnet/runtime</Uri>
-      <Sha>214ca6db481923aa49bac2d2b75b9aca4041b304</Sha>
-    </Dependency>
-    <Dependency Name="Microsoft.NETCore.DotNetHostPolicy" Version="7.0.0-rc.1.22374.4">
-      <Uri>https://github.com/dotnet/runtime</Uri>
-      <Sha>214ca6db481923aa49bac2d2b75b9aca4041b304</Sha>
-    </Dependency>
     <Dependency Name="runtime.native.System.IO.Ports" Version="7.0.0-rc.1.22374.4">
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>214ca6db481923aa49bac2d2b75b9aca4041b304</Sha>
diff --git a/eng/Versions.props b/eng/Versions.props
index 9d4b272c6686f..2a45d875c7e82 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -74,8 +74,6 @@
     <NuGetBuildTasksPackVersion>6.0.0-preview.1.102</NuGetBuildTasksPackVersion>
     <!-- Installer dependencies -->
     <MicrosoftNETCoreAppRuntimewinx64Version>7.0.0-rc.1.22374.4</MicrosoftNETCoreAppRuntimewinx64Version>
-    <MicrosoftNETCoreDotNetHostVersion>7.0.0-rc.1.22374.4</MicrosoftNETCoreDotNetHostVersion>
-    <MicrosoftNETCoreDotNetHostPolicyVersion>7.0.0-rc.1.22374.4</MicrosoftNETCoreDotNetHostPolicyVersion>
     <MicrosoftExtensionsDependencyModelVersion>6.0.0</MicrosoftExtensionsDependencyModelVersion>
     <!-- CoreClr dependencies -->
     <MicrosoftNETCoreILAsmVersion>7.0.0-rc.1.22374.4</MicrosoftNETCoreILAsmVersion>
diff --git a/eng/pipelines/libraries/run-test-job.yml b/eng/pipelines/libraries/run-test-job.yml
index c6fbe831a4d9b..0d18eda1283f9 100644
--- a/eng/pipelines/libraries/run-test-job.yml
+++ b/eng/pipelines/libraries/run-test-job.yml
@@ -32,13 +32,14 @@ jobs:
       osGroup:  ${{ parameters.osGroup }}
       osSubgroup:  ${{ parameters.osSubgroup }}
       archType:  ${{ parameters.archType }}
+      crossBuild: ${{ parameters.crossBuild }}
       framework:  ${{ parameters.framework }}
       isOfficialBuild: ${{ parameters.isOfficialBuild }}
       liveRuntimeBuildConfig: ${{ parameters.liveRuntimeBuildConfig }}
       runtimeFlavor: ${{ parameters.runtimeFlavor }}
       runtimeVariant: ${{ parameters.runtimeVariant }}
       timeoutInMinutes: ${{ parameters.timeoutInMinutes }}
-      container: '' # we just send to helix, no need to use a container.
+      container: ${{ parameters.container }}
       condition: ${{ parameters.condition }}
       testScope: ${{ parameters.testScope }}
       runTests: true
@@ -89,7 +90,7 @@ jobs:
 
         - ${{ if ne(parameters.liveRuntimeBuildConfig, '') }}:
           - script: $(_buildScript)
-                    -subset libs.pretest
+                    -subset host+libs.pretest
                     $(_buildArguments)
                     /p:RuntimeFlavor=${{ parameters.runtimeFlavor }}
                     /bl:$(Build.SourcesDirectory)/artifacts/log/$(_BuildConfig)/overrideRuntimeFromLiveDrop.binlog
diff --git a/src/libraries/externals.csproj b/src/libraries/externals.csproj
index 415545b533e76..a2fbff29ec060 100644
--- a/src/libraries/externals.csproj
+++ b/src/libraries/externals.csproj
@@ -1,7 +1,5 @@
 <Project Sdk="Microsoft.Build.NoTargets">
   <PropertyGroup>
-    <!-- Set the RuntimeIdentifier so that the DotNetHost and DotNetHostPolicy packages resolve for the corresponding runtime. -->
-    <RuntimeIdentifier>$(PackageRID)</RuntimeIdentifier>
     <SwapNativeForIL Condition="'$(SwapNativeForIL)' == '' and ('$(Configuration)' == 'Debug' or '$(Coverage)' == 'true') and '$(RuntimeFlavor)' != 'Mono'">true</SwapNativeForIL>
     <TargetFramework>$(NetCoreAppCurrent)</TargetFramework>
     <!-- Binplace properties -->
@@ -9,7 +7,6 @@
     <BinPlaceNative>true</BinPlaceNative>
     <BinPlaceRuntime>false</BinPlaceRuntime>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
-    <UseLiveBuiltDotNetHost Condition="'$(DotNetBuildFromSource)' == 'true' or '$(TargetArchitecture)' == 's390x' or '$(TargetArchitecture)' == 'ppc64le' or '$(TargetArchitecture)' == 'armv6' or '$(TargetsLinuxBionic)' == 'true'">true</UseLiveBuiltDotNetHost>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -21,23 +18,23 @@
   </PropertyGroup>
 
   <Import Project="$(RepositoryEngineeringDir)coredistools.targets" Condition="$(CopyCoreDisToolsToCoreRoot)" />
-  
+
   <ItemGroup Condition="'$(DotNetBuildFromSource)' != 'true'">
     <PackageReference Include="Microsoft.DiaSymReader.Native"
                       Version="$(MicrosoftDiaSymReaderNativeVersion)" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetsMobile)' != 'true' and '$(UseLiveBuiltDotNetHost)' != 'true'">
-    <PackageReference Include="Microsoft.NETCore.DotNetHost"
-                      Version="$(MicrosoftNETCoreDotNetHostVersion)" />
-    <PackageReference Include="Microsoft.NETCore.DotNetHostPolicy"
-                      Version="$(MicrosoftNETCoreDotNetHostPolicyVersion)" />
+  <ItemGroup>
+    <HostFxrFile Include="$(DotNetHostBinDir)$(LibPrefix)hostfxr$(LibSuffix)" />
+    <HostPolicyFile Include="$(DotNetHostBinDir)$(LibPrefix)hostpolicy$(LibSuffix)" />
+    <DotnetExe Include="$(DotNetHostBinDir)dotnet$(ExeSuffix)" />
   </ItemGroup>
 
+
   <!-- Setup the testing shared framework host -->
   <Target Name="SetupTestingHost"
           AfterTargets="AfterResolveReferences"
-          Condition="'$(TestNativeAot)' != 'true'">
+          Condition="Exists('$(DotNetHostBinDir)') and '$(TestNativeAot)' != 'true'">
     <PropertyGroup>
       <UseHardlink>true</UseHardlink>
     </PropertyGroup>
@@ -48,22 +45,7 @@
       <ReferenceCopyLocalPaths Remove="@(ReferenceCopyLocalPaths)" Condition="'%(Filename)' == 'apphost'" />
     </ItemGroup>
 
-    <ItemGroup Condition="'$(UseLiveBuiltDotNetHost)' != 'true'">
-      <HostFxFile Include="@(ReferenceCopyLocalPaths)" Condition="'%(ReferenceCopyLocalPaths.Filename)' == 'hostfxr' or
-                                                                  '%(ReferenceCopyLocalPaths.Filename)' == 'libhostfxr'" />
-      <DotnetExe Include="@(ReferenceCopyLocalPaths)" Condition="'%(ReferenceCopyLocalPaths.Filename)' == 'dotnet'" />
-    </ItemGroup>
-
-    <ItemGroup Condition="'$(UseLiveBuiltDotNetHost)' == 'true'">
-      <CoreHostFiles Include="$(DotNetHostBinDir)*" />
-      <HostFxFile Include="@(CoreHostFiles)" Condition="'%(CoreHostFiles.Filename)' == 'hostfxr' or
-                                                          '%(CoreHostFiles.Filename)' == 'libhostfxr'" />
-      <HostPolicyFile Include="@(CoreHostFiles)" Condition="'%(CoreHostFiles.Filename)' == 'hostpolicy' or
-                                                              '%(CoreHostFiles.Filename)' == 'libhostpolicy'" />
-      <DotnetExe Include="@(CoreHostFiles)" Condition="'%(CoreHostFiles.Filename)' == 'dotnet'" />
-    </ItemGroup>
-
-    <Copy SourceFiles="@(HostFxFile)"
+    <Copy SourceFiles="@(HostFxrFile)"
           DestinationFolder="$(NetCoreAppCurrentTestHostPath)host\fxr\$(ProductVersion)"
           SkipUnchangedFiles="true"
           UseHardlinksIfPossible="$(UseHardlink)" />
@@ -78,7 +60,7 @@
           SkipUnchangedFiles="true"
           UseHardlinksIfPossible="$(UseHardlink)" />
 
-    <Copy Condition="$(CopyCoreDisToolsToCoreRoot)" 
+    <Copy Condition="$(CopyCoreDisToolsToCoreRoot)"
           SourceFiles="$(CoreDisToolsLibrary)"
           DestinationFolder="$(NetCoreAppCurrentTestHostPath)shared\Microsoft.NETCore.App\$(ProductVersion)"
           SkipUnchangedFiles="true"
@@ -92,6 +74,8 @@
           AfterTargets="AfterResolveReferences"
           Condition="'$(RuntimeFlavor)' != 'Mono' and '$(TestNativeAot)' != 'true'">
     <ItemGroup>
+      <RuntimeFiles Include="@(HostFxrFile)" Condition="Exists('@(HostFxrFile)')" />
+      <RuntimeFiles Include="@(HostPolicyFile)" Condition="Exists('@(HostPolicyFile)')" />
       <!-- CoreRun is not used for testing anymore, but we still use it for benchmarking and profiling -->
       <RuntimeFiles Include="$(CoreCLRArtifactsPath)\corerun*" />
       <RuntimeFiles Include="$(CoreCLRArtifactsPath)\PDB\corerun*" />