Move the BootstrapperApplication out of proc

9 files changed, 0 insertions, 736 deletions

diff --git a/src/ext/Bal/dnchost/dnchost.cpp b/src/ext/Bal/dnchost/dnchost.cpp
deleted file mode 100644
index 1868e3f8..00000000
--- a/src/ext/Bal/dnchost/dnchost.cpp
+++ /dev/null
@@ -1,328 +0,0 @@
-// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
-
-#include "precomp.h"
-
-static DNCSTATE vstate = { };
-
-
-// internal function declarations
-
-static HRESULT LoadModulePaths(
-    __in DNCSTATE* pState
-    );
-static HRESULT LoadDncConfiguration(
-    __in DNCSTATE* pState,
-    __in const BOOTSTRAPPER_CREATE_ARGS* pArgs
-    );
-static HRESULT LoadRuntime(
-    __in DNCSTATE* pState
-    );
-static HRESULT LoadManagedBootstrapperApplicationFactory(
-    __in DNCSTATE* pState
-    );
-static HRESULT CreatePrerequisiteBA(
-    __in DNCSTATE* pState,
-    __in IBootstrapperEngine* pEngine,
-    __in const BOOTSTRAPPER_CREATE_ARGS* pArgs,
-    __inout BOOTSTRAPPER_CREATE_RESULTS* pResults
-    );
-
-
-// function definitions
-
-extern "C" BOOL WINAPI DllMain(
-    IN HINSTANCE hInstance,
-    IN DWORD dwReason,
-    IN LPVOID /* pvReserved */
-    )
-{
-    switch (dwReason)
-    {
-    case DLL_PROCESS_ATTACH:
-        ::DisableThreadLibraryCalls(hInstance);
-        vstate.hInstance = hInstance;
-        break;
-
-    case DLL_PROCESS_DETACH:
-        vstate.hInstance = NULL;
-        break;
-    }
-
-    return TRUE;
-}
-
-extern "C" HRESULT WINAPI BootstrapperApplicationCreate(
-    __in const BOOTSTRAPPER_CREATE_ARGS* pArgs,
-    __inout BOOTSTRAPPER_CREATE_RESULTS* pResults
-    )
-{
-    HRESULT hr = S_OK;
-    IBootstrapperEngine* pEngine = NULL;
-
-    hr = BalInitializeFromCreateArgs(pArgs, &pEngine);
-    ExitOnFailure(hr, "Failed to initialize Bal.");
-
-    if (!vstate.fInitialized)
-    {
-        hr = XmlInitialize();
-        BalExitOnFailure(hr, "Failed to initialize XML.");
-
-        hr = LoadModulePaths(&vstate);
-        BalExitOnFailure(hr, "Failed to get the host base path.");
-
-        hr = LoadDncConfiguration(&vstate, pArgs);
-        BalExitOnFailure(hr, "Failed to get the dnc configuration.");
-
-        vstate.fInitialized = TRUE;
-    }
-
-    if (vstate.prereqData.fAlwaysInstallPrereqs && !vstate.prereqData.fCompleted)
-    {
-        BalLog(BOOTSTRAPPER_LOG_LEVEL_STANDARD, "Loading prerequisite bootstrapper application since it's configured to always run before loading the runtime.");
-
-        hr = CreatePrerequisiteBA(&vstate, pEngine, pArgs, pResults);
-        BalExitOnFailure(hr, "Failed to create the pre-requisite bootstrapper application.");
-
-        ExitFunction();
-    }
-
-    if (!vstate.fInitializedRuntime)
-    {
-        hr = LoadRuntime(&vstate);
-
-        vstate.fInitializedRuntime = SUCCEEDED(hr);
-    }
-
-    if (vstate.fInitializedRuntime)
-    {
-        if (!vstate.pAppFactory)
-        {
-            hr = LoadManagedBootstrapperApplicationFactory(&vstate);
-            BalExitOnFailure(hr, "Failed to create the .NET Core bootstrapper application factory.");
-        }
-
-        BalLog(BOOTSTRAPPER_LOG_LEVEL_STANDARD, "Loading .NET Core %ls bootstrapper application.", DNCHOSTTYPE_FDD == vstate.type ? L"FDD" : L"SCD");
-
-        hr = vstate.pAppFactory->Create(pArgs, pResults);
-        BalExitOnFailure(hr, "Failed to create the .NET Core bootstrapper application.");
-    }
-    else // fallback to the prerequisite BA.
-    {
-        if (DNCHOSTTYPE_SCD == vstate.type)
-        {
-            vstate.prereqData.hrFatalError = E_DNCHOST_SCD_RUNTIME_FAILURE;
-            BalLogError(hr, "The self-contained .NET Core runtime failed to load. This is an unrecoverable error.");
-        }
-        else if (vstate.prereqData.fCompleted)
-        {
-            hr = E_PREREQBA_INFINITE_LOOP;
-            BalLogError(hr, "The prerequisites were already installed. The bootstrapper application will not be reloaded to prevent an infinite loop.");
-            vstate.prereqData.hrFatalError = hr;
-        }
-        else
-        {
-            vstate.prereqData.hrFatalError = S_OK;
-        }
-        BalLog(BOOTSTRAPPER_LOG_LEVEL_STANDARD, "Loading prerequisite bootstrapper application because .NET Core host could not be loaded, error: 0x%08x.", hr);
-
-        hr = CreatePrerequisiteBA(&vstate, pEngine, pArgs, pResults);
-        BalExitOnFailure(hr, "Failed to create the pre-requisite bootstrapper application.");
-    }
-
-LExit:
-    ReleaseNullObject(pEngine);
-
-    return hr;
-}
-
-extern "C" void WINAPI BootstrapperApplicationDestroy(
-    __in const BOOTSTRAPPER_DESTROY_ARGS* pArgs,
-    __in BOOTSTRAPPER_DESTROY_RESULTS* pResults
-    )
-{
-    BOOTSTRAPPER_DESTROY_RESULTS childResults = { };
-
-    childResults.cbSize = sizeof(BOOTSTRAPPER_DESTROY_RESULTS);
-
-    if (vstate.hMbapreqModule)
-    {
-        PFN_BOOTSTRAPPER_APPLICATION_DESTROY pfnDestroy = reinterpret_cast<PFN_BOOTSTRAPPER_APPLICATION_DESTROY>(::GetProcAddress(vstate.hMbapreqModule, "PrereqBootstrapperApplicationDestroy"));
-        if (pfnDestroy)
-        {
-            (*pfnDestroy)(pArgs, &childResults);
-        }
-
-        ::FreeLibrary(vstate.hMbapreqModule);
-        vstate.hMbapreqModule = NULL;
-    }
-
-    BalUninitialize();
-
-    // Need to keep track of state between reloads.
-    pResults->fDisableUnloading = TRUE;
-}
-
-static HRESULT LoadModulePaths(
-    __in DNCSTATE* pState
-    )
-{
-    HRESULT hr = S_OK;
-
-    hr = PathForCurrentProcess(&pState->sczModuleFullPath, pState->hInstance);
-    BalExitOnFailure(hr, "Failed to get the full host path.");
-
-    hr = PathGetDirectory(pState->sczModuleFullPath, &pState->sczAppBase);
-    BalExitOnFailure(hr, "Failed to get the directory of the full process path.");
-
-LExit:
-    return hr;
-}
-
-static HRESULT LoadDncConfiguration(
-    __in DNCSTATE* pState,
-    __in const BOOTSTRAPPER_CREATE_ARGS* pArgs
-    )
-{
-    HRESULT hr = S_OK;
-    IXMLDOMDocument* pixdManifest = NULL;
-    IXMLDOMNode* pixnHost = NULL;
-    LPWSTR sczPayloadName = NULL;
-    DWORD dwBool = 0;
-    BOOL fXmlFound = FALSE;
-
-    hr = XmlLoadDocumentFromFile(pArgs->pCommand->wzBootstrapperApplicationDataPath, &pixdManifest);
-    BalExitOnFailure(hr, "Failed to load BalManifest '%ls'", pArgs->pCommand->wzBootstrapperApplicationDataPath);
-
-    hr = XmlSelectSingleNode(pixdManifest, L"/BootstrapperApplicationData/WixBalBAFactoryAssembly", &pixnHost);
-    BalExitOnRequiredXmlQueryFailure(hr, "Failed to get WixBalBAFactoryAssembly element.");
-
-    hr = XmlGetAttributeEx(pixnHost, L"FilePath", &sczPayloadName);
-    BalExitOnRequiredXmlQueryFailure(hr, "Failed to get WixBalBAFactoryAssembly/@FilePath.");
-
-    hr = PathConcatRelativeToBase(pArgs->pCommand->wzBootstrapperWorkingFolder, sczPayloadName, &pState->sczBaFactoryAssemblyPath);
-    BalExitOnFailure(hr, "Failed to create BaFactoryAssemblyPath.");
-
-    LPCWSTR wzFileName = PathFile(pState->sczBaFactoryAssemblyPath);
-    LPCWSTR wzExtension = PathExtension(pState->sczBaFactoryAssemblyPath);
-    if (!wzExtension)
-    {
-        BalExitOnFailure(hr = E_FAIL, "BaFactoryAssemblyPath has no extension.");
-    }
-
-    hr = StrAllocString(&pState->sczBaFactoryAssemblyName, wzFileName, wzExtension - wzFileName);
-    BalExitOnFailure(hr, "Failed to copy BAFactoryAssembly payload Name.");
-
-    hr = StrAllocString(&pState->sczBaFactoryDepsJsonPath, pState->sczBaFactoryAssemblyPath, wzExtension - pState->sczBaFactoryAssemblyPath);
-    BalExitOnFailure(hr, "Failed to initialize deps json path.");
-
-    hr = StrAllocString(&pState->sczBaFactoryRuntimeConfigPath, pState->sczBaFactoryDepsJsonPath, 0);
-    BalExitOnFailure(hr, "Failed to initialize runtime config path.");
-
-    hr = StrAllocConcat(&pState->sczBaFactoryDepsJsonPath, L".deps.json", 0);
-    BalExitOnFailure(hr, "Failed to concat extension to deps json path.");
-
-    hr = StrAllocConcat(&pState->sczBaFactoryRuntimeConfigPath, L".runtimeconfig.json", 0);
-    BalExitOnFailure(hr, "Failed to concat extension to runtime config path.");
-
-    hr = XmlSelectSingleNode(pixdManifest, L"/BootstrapperApplicationData/WixMbaPrereqOptions", &pixnHost);
-    BalExitOnOptionalXmlQueryFailure(hr, fXmlFound, "Failed to find WixMbaPrereqOptions element in bootstrapper application config.");
-
-    if (fXmlFound)
-    {
-        hr = XmlGetAttributeNumber(pixnHost, L"AlwaysInstallPrereqs", reinterpret_cast<DWORD*>(&pState->prereqData.fAlwaysInstallPrereqs));
-        BalExitOnOptionalXmlQueryFailure(hr, fXmlFound, "Failed to get AlwaysInstallPrereqs value.");
-    }
-
-    pState->prereqData.fPerformHelp = !pState->prereqData.fAlwaysInstallPrereqs;
-
-    pState->type = DNCHOSTTYPE_FDD;
-
-    hr = XmlSelectSingleNode(pixdManifest, L"/BootstrapperApplicationData/WixDncOptions", &pixnHost);
-    BalExitOnOptionalXmlQueryFailure(hr, fXmlFound, "Failed to find WixDncOptions element in bootstrapper application config.");
-
-    if (!fXmlFound)
-    {
-        ExitFunction();
-    }
-
-    hr = XmlGetAttributeNumber(pixnHost, L"SelfContainedDeployment", &dwBool);
-    BalExitOnOptionalXmlQueryFailure(hr, fXmlFound, "Failed to get SelfContainedDeployment value.");
-
-    if (fXmlFound && dwBool)
-    {
-        pState->type = DNCHOSTTYPE_SCD;
-    }
-
-LExit:
-    ReleaseStr(sczPayloadName);
-    ReleaseObject(pixnHost);
-    ReleaseObject(pixdManifest);
-
-    return hr;
-}
-
-static HRESULT LoadRuntime(
-    __in DNCSTATE* pState
-    )
-{
-    HRESULT hr = S_OK;
-
-    hr = DnchostLoadRuntime(
-        &pState->hostfxrState,
-        pState->sczModuleFullPath,
-        pState->sczBaFactoryAssemblyPath,
-        pState->sczBaFactoryDepsJsonPath,
-        pState->sczBaFactoryRuntimeConfigPath);
-
-    return hr;
-}
-
-static HRESULT LoadManagedBootstrapperApplicationFactory(
-    __in DNCSTATE* pState
-    )
-{
-    HRESULT hr = S_OK;
-
-    hr = DnchostCreateFactory(
-        &pState->hostfxrState,
-        pState->sczBaFactoryAssemblyName,
-        &pState->pAppFactory);
-
-    return hr;
-}
-
-static HRESULT CreatePrerequisiteBA(
-    __in DNCSTATE* pState,
-    __in IBootstrapperEngine* pEngine,
-    __in const BOOTSTRAPPER_CREATE_ARGS* pArgs,
-    __inout BOOTSTRAPPER_CREATE_RESULTS* pResults
-    )
-{
-    HRESULT hr = S_OK;
-    LPWSTR sczDncpreqPath = NULL;
-    HMODULE hModule = NULL;
-
-    hr = PathConcat(pState->sczAppBase, L"dncpreq.dll", &sczDncpreqPath);
-    BalExitOnFailure(hr, "Failed to get path to pre-requisite BA.");
-
-    hModule = ::LoadLibraryExW(sczDncpreqPath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
-    BalExitOnNullWithLastError(hModule, hr, "Failed to load pre-requisite BA DLL.");
-
-    PFN_PREQ_BOOTSTRAPPER_APPLICATION_CREATE pfnCreate = reinterpret_cast<PFN_PREQ_BOOTSTRAPPER_APPLICATION_CREATE>(::GetProcAddress(hModule, "PrereqBootstrapperApplicationCreate"));
-    BalExitOnNullWithLastError(pfnCreate, hr, "Failed to get PrereqBootstrapperApplicationCreate entry-point from: %ls", sczDncpreqPath);
-
-    hr = pfnCreate(&pState->prereqData, pEngine, pArgs, pResults);
-    BalExitOnFailure(hr, "Failed to create prequisite bootstrapper app.");
-
-    pState->hMbapreqModule = hModule;
-    hModule = NULL;
-
-LExit:
-    if (hModule)
-    {
-        ::FreeLibrary(hModule);
-    }
-    ReleaseStr(sczDncpreqPath);
-
-    return hr;
-}
diff --git a/src/ext/Bal/dnchost/dnchost.def b/src/ext/Bal/dnchost/dnchost.def
deleted file mode 100644
index 4488df94..00000000
--- a/src/ext/Bal/dnchost/dnchost.def
+++ /dev/null
@@ -1,6 +0,0 @@
-; Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
-
-
-EXPORTS
-    BootstrapperApplicationCreate
-    BootstrapperApplicationDestroy
diff --git a/src/ext/Bal/dnchost/dnchost.h b/src/ext/Bal/dnchost/dnchost.h
deleted file mode 100644
index 000cf43d..00000000
--- a/src/ext/Bal/dnchost/dnchost.h
+++ /dev/null
@@ -1,28 +0,0 @@
-#pragma once
-// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
-
-
-enum DNCHOSTTYPE
-{
-    DNCHOSTTYPE_UNKNOWN,
-    DNCHOSTTYPE_FDD,
-    DNCHOSTTYPE_SCD,
-};
-
-struct DNCSTATE
-{
-    BOOL fInitialized;
-    BOOL fInitializedRuntime;
-    HINSTANCE hInstance;
-    LPWSTR sczModuleFullPath;
-    LPWSTR sczAppBase;
-    LPWSTR sczBaFactoryAssemblyName;
-    LPWSTR sczBaFactoryAssemblyPath;
-    LPWSTR sczBaFactoryDepsJsonPath;
-    LPWSTR sczBaFactoryRuntimeConfigPath;
-    DNCHOSTTYPE type;
-    HOSTFXR_STATE hostfxrState;
-    IBootstrapperApplicationFactory* pAppFactory;
-    HMODULE hMbapreqModule;
-    PREQBA_DATA prereqData;
-};
diff --git a/src/ext/Bal/dnchost/dnchost.vcxproj b/src/ext/Bal/dnchost/dnchost.vcxproj
deleted file mode 100644
index 5860e968..00000000
--- a/src/ext/Bal/dnchost/dnchost.vcxproj
+++ /dev/null
@@ -1,89 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|ARM64">
-      <Configuration>Debug</Configuration>
-      <Platform>ARM64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|ARM64">
-      <Configuration>Release</Configuration>
-      <Platform>ARM64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{B6F70281-6583-4138-BB7F-AABFEBBB3CA2}</ProjectGuid>
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-    <TargetName>dnchost</TargetName>
-    <ProjectModuleDefinitionFile>dnchost.def</ProjectModuleDefinitionFile>
-  </PropertyGroup>
-
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-
-  <ItemDefinitionGroup Condition=" '$(Configuration)'=='Debug' ">
-    <ClCompile>
-      <!-- libnethost.lib is currently only available in Release mode, so can't use debug runtime -->
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-    </ClCompile>
-  </ItemDefinitionGroup>
-
-  <PropertyGroup>
-    <NetHostPlatform>$(Platform)</NetHostPlatform>
-    <NetHostPlatform Condition=" '$(NetHostPlatform)'=='Win32' ">x86</NetHostPlatform>
-    <NetHostPath>..\..\..\..\packages\runtime.win-$(NetHostPlatform).Microsoft.NETCore.DotNetAppHost.6.0.4\runtimes\win-$(NetHostPlatform)\native\</NetHostPath>
-    <ProjectAdditionalIncludeDirectories>$(BaseOutputPath)obj;$(NetHostPath);..\wixstdba\inc</ProjectAdditionalIncludeDirectories>
-    <ProjectAdditionalLinkLibraries>shlwapi.lib;$(NetHostPath)libnethost.lib</ProjectAdditionalLinkLibraries>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <ClCompile Include="dnchost.cpp" />
-    <ClCompile Include="dncutil.cpp" />
-    <ClCompile Include="precomp.cpp">
-      <PrecompiledHeader>Create</PrecompiledHeader>
-    </ClCompile>
-  </ItemGroup>
-
-  <ItemGroup>
-    <ClInclude Include="dnchost.h" />
-    <ClInclude Include="dncutil.h" />
-    <ClInclude Include="precomp.h" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <None Include="dnchost.def" />
-  </ItemGroup>
-
-  <ItemDefinitionGroup>
-    <Link>
-      <!-- libnethost.lib is currently compiled with /GL, so must use linker option /LTCG -->
-      <AdditionalOptions>/LTCG %(AdditionalOptions)</AdditionalOptions>
-    </Link>
-  </ItemDefinitionGroup>
-
-  <ItemGroup>
-    <PackageReference Include="WixToolset.BalUtil" />
-
-    <PackageReference Include="Microsoft.SourceLink.GitHub" PrivateAssets="All" />
-  </ItemGroup>
-
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-</Project>
diff --git a/src/ext/Bal/dnchost/dncutil.cpp b/src/ext/Bal/dnchost/dncutil.cpp
deleted file mode 100644
index d00b0ce6..00000000
--- a/src/ext/Bal/dnchost/dncutil.cpp
+++ /dev/null
@@ -1,216 +0,0 @@
-// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
-
-#include "precomp.h"
-
-#define DNC_ENTRY_TYPEW L"WixToolset.Dnc.Host.BootstrapperApplicationFactory"
-#define DNC_STATIC_ENTRY_METHODW L"CreateBAFactory"
-#define DNC_STATIC_ENTRY_DELEGATEW L"WixToolset.Dnc.Host.StaticEntryDelegate"
-
-// https://github.com/dotnet/runtime/blob/master/src/installer/corehost/error_codes.h
-#define InvalidArgFailure 0x80008081
-#define HostApiBufferTooSmall 0x80008098
-#define HostApiUnsupportedVersion 0x800080a2
-
-// internal function declarations
-
-static HRESULT GetHostfxrPath(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzNativeHostPath
-    );
-static HRESULT LoadHostfxr(
-    __in HOSTFXR_STATE* pState
-    );
-static HRESULT InitializeHostfxr(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzManagedHostPath,
-    __in LPCWSTR wzDepsJsonPath,
-    __in LPCWSTR wzRuntimeConfigPath
-    );
-static HRESULT InitializeCoreClr(
-    __in HOSTFXR_STATE* pState
-    );
-
-
-// function definitions
-
-HRESULT DnchostLoadRuntime(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzNativeHostPath,
-    __in LPCWSTR wzManagedHostPath,
-    __in LPCWSTR wzDepsJsonPath,
-    __in LPCWSTR wzRuntimeConfigPath
-    )
-{
-    HRESULT hr = S_OK;
-
-    hr = GetHostfxrPath(pState, wzNativeHostPath);
-    BalExitOnFailure(hr, "Failed to find hostfxr.");
-
-    hr = LoadHostfxr(pState);
-    BalExitOnFailure(hr, "Failed to load hostfxr.");
-
-    hr = InitializeHostfxr(pState, wzManagedHostPath, wzDepsJsonPath, wzRuntimeConfigPath);
-    BalExitOnFailure(hr, "Failed to initialize hostfxr.");
-
-    hr = InitializeCoreClr(pState);
-    BalExitOnFailure(hr, "Failed to initialize coreclr.");
-
-LExit:
-    return hr;
-}
-
-HRESULT DnchostCreateFactory(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzBaFactoryAssemblyName,
-    __out IBootstrapperApplicationFactory** ppAppFactory
-    )
-{
-    HRESULT hr = S_OK;
-    PFNCREATEBAFACTORY pfnCreateBAFactory = NULL;
-    LPWSTR sczEntryType = NULL;
-    LPWSTR sczEntryDelegate = NULL;
-    LPSTR sczBaFactoryAssemblyName = NULL;
-
-    hr = StrAllocFormatted(&sczEntryType, L"%ls,%ls", DNC_ENTRY_TYPEW, wzBaFactoryAssemblyName);
-    BalExitOnFailure(hr, "Failed to format entry type.");
-
-    hr = StrAllocFormatted(&sczEntryDelegate, L"%ls,%ls", DNC_STATIC_ENTRY_DELEGATEW, wzBaFactoryAssemblyName);
-    BalExitOnFailure(hr, "Failed to format entry delegate.");
-
-    hr = pState->pfnGetFunctionPointer(
-        sczEntryType,
-        DNC_STATIC_ENTRY_METHODW,
-        sczEntryDelegate,
-        NULL,
-        NULL,
-        reinterpret_cast<void**>(&pfnCreateBAFactory));
-    BalExitOnFailure(hr, "Failed to create delegate through GetFunctionPointer.");
-
-    *ppAppFactory = pfnCreateBAFactory();
-
-LExit:
-    ReleaseStr(sczEntryType);
-    ReleaseStr(sczEntryDelegate);
-    ReleaseStr(sczBaFactoryAssemblyName);
-
-    return hr;
-}
-
-static HRESULT GetHostfxrPath(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzNativeHostPath
-    )
-{
-    HRESULT hr = S_OK;
-    get_hostfxr_parameters getHostfxrParameters = { };
-    int nrc = 0;
-    size_t cchHostFxrPath = MAX_PATH;
-
-    getHostfxrParameters.size = sizeof(get_hostfxr_parameters);
-    getHostfxrParameters.assembly_path = wzNativeHostPath;
-
-    // get_hostfxr_path does a full search on every call, so
-    //    minimize the number of calls
-    //    need to loop
-    for (;;)
-    {
-        cchHostFxrPath *= 2;
-        hr = StrAlloc(&pState->sczHostfxrPath, cchHostFxrPath);
-        BalExitOnFailure(hr, "Failed to allocate hostFxrPath.");
-
-        nrc = get_hostfxr_path(pState->sczHostfxrPath, &cchHostFxrPath, &getHostfxrParameters);
-        if (HostApiBufferTooSmall != nrc)
-        {
-            break;
-        }
-    }
-    if (0 != nrc)
-    {
-        BalExitOnFailure(hr = nrc, "GetHostfxrPath failed");
-    }
-
-LExit:
-    return hr;
-}
-
-static HRESULT LoadHostfxr(
-    __in HOSTFXR_STATE* pState
-    )
-{
-    HRESULT hr = S_OK;
-    HMODULE hHostfxr;
-
-    hHostfxr = ::LoadLibraryExW(pState->sczHostfxrPath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
-    BalExitOnNullWithLastError(hHostfxr, hr, "Failed to load hostfxr from '%ls'.", pState->sczHostfxrPath);
-
-    pState->pfnHostfxrInitializeForApp = reinterpret_cast<hostfxr_initialize_for_dotnet_command_line_fn>(::GetProcAddress(hHostfxr, "hostfxr_initialize_for_dotnet_command_line"));
-    BalExitOnNullWithLastError(pState->pfnHostfxrInitializeForApp, hr, "Failed to get procedure address for hostfxr_initialize_for_dotnet_command_line.");
-
-    pState->pfnHostfxrSetErrorWriter = reinterpret_cast<hostfxr_set_error_writer_fn>(::GetProcAddress(hHostfxr, "hostfxr_set_error_writer"));
-    BalExitOnNullWithLastError(pState->pfnHostfxrSetErrorWriter, hr, "Failed to get procedure address for hostfxr_set_error_writer.");
-
-    pState->pfnHostfxrClose = reinterpret_cast<hostfxr_close_fn>(::GetProcAddress(hHostfxr, "hostfxr_close"));
-    BalExitOnNullWithLastError(pState->pfnHostfxrClose, hr, "Failed to get procedure address for hostfxr_close.");
-
-    pState->pfnHostfxrGetRuntimeDelegate = reinterpret_cast<hostfxr_get_runtime_delegate_fn>(::GetProcAddress(hHostfxr, "hostfxr_get_runtime_delegate"));
-    BalExitOnNullWithLastError(pState->pfnHostfxrGetRuntimeDelegate, hr, "Failed to get procedure address for hostfxr_get_runtime_delegate.");
-
-LExit:
-    // Never unload the module since it isn't meant to be unloaded.
-
-    return hr;
-}
-
-static void HOSTFXR_CALLTYPE DnchostErrorWriter(
-    __in LPCWSTR wzMessage
-    )
-{
-    BalLog(BOOTSTRAPPER_LOG_LEVEL_ERROR, "error from hostfxr: %ls", wzMessage);
-}
-
-static HRESULT InitializeHostfxr(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzManagedHostPath,
-    __in LPCWSTR wzDepsJsonPath,
-    __in LPCWSTR wzRuntimeConfigPath
-    )
-{
-    HRESULT hr = S_OK;
-
-    pState->pfnHostfxrSetErrorWriter(static_cast<hostfxr_error_writer_fn>(&DnchostErrorWriter));
-
-    LPCWSTR argv[] = {
-        L"exec",
-        L"--depsfile",
-        wzDepsJsonPath,
-        L"--runtimeconfig",
-        wzRuntimeConfigPath,
-        wzManagedHostPath,
-    };
-    hr = pState->pfnHostfxrInitializeForApp(sizeof(argv)/sizeof(LPWSTR), argv, NULL, &pState->hostContextHandle);
-    BalExitOnFailure(hr, "HostfxrInitializeForApp failed");
-
-LExit:
-    return hr;
-}
-
-static HRESULT InitializeCoreClr(
-    __in HOSTFXR_STATE* pState
-    )
-{
-    HRESULT hr = S_OK;
-
-    hr = pState->pfnHostfxrGetRuntimeDelegate(pState->hostContextHandle, hdt_get_function_pointer, reinterpret_cast<void**>(&pState->pfnGetFunctionPointer));
-    if (InvalidArgFailure == hr || // old versions of hostfxr don't allow calling GetRuntimeDelegate from InitializeForApp.
-        HostApiUnsupportedVersion == hr) // hdt_get_function_pointer was added in .NET 5.
-    {
-        BalExitOnFailure(hr, "HostfxrGetRuntimeDelegate failed, most likely because the target framework is older than .NET 5.");
-    }
-    else
-    {
-        BalExitOnFailure(hr, "HostfxrGetRuntimeDelegate failed");
-    }
-
-LExit:
-    return hr;
-}
diff --git a/src/ext/Bal/dnchost/dncutil.h b/src/ext/Bal/dnchost/dncutil.h
deleted file mode 100644
index 3fa81364..00000000
--- a/src/ext/Bal/dnchost/dncutil.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#pragma once
-// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
-
-typedef IBootstrapperApplicationFactory* (STDMETHODCALLTYPE* PFNCREATEBAFACTORY)();
-
-struct HOSTFXR_STATE
-{
-    LPWSTR sczHostfxrPath;
-    hostfxr_handle hostContextHandle;
-    hostfxr_initialize_for_dotnet_command_line_fn pfnHostfxrInitializeForApp;
-    hostfxr_set_error_writer_fn pfnHostfxrSetErrorWriter;
-    hostfxr_close_fn pfnHostfxrClose;
-    hostfxr_get_runtime_delegate_fn pfnHostfxrGetRuntimeDelegate;
-    get_function_pointer_fn pfnGetFunctionPointer;
-};
-
-HRESULT DnchostLoadRuntime(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzNativeHostPath,
-    __in LPCWSTR wzManagedHostPath,
-    __in LPCWSTR wzDepsJsonPath,
-    __in LPCWSTR wzRuntimeConfigPath
-    );
-
-HRESULT DnchostCreateFactory(
-    __in HOSTFXR_STATE* pState,
-    __in LPCWSTR wzBaFactoryAssemblyName,
-    __out IBootstrapperApplicationFactory** ppAppFactory
-    );
diff --git a/src/ext/Bal/dnchost/packages.config b/src/ext/Bal/dnchost/packages.config
deleted file mode 100644
index 1c7505e7..00000000
--- a/src/ext/Bal/dnchost/packages.config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="runtime.win-arm64.Microsoft.NETCore.DotNetAppHost" version="6.0.4" targetFramework="native" />
-  <package id="runtime.win-x64.Microsoft.NETCore.DotNetAppHost" version="6.0.4" targetFramework="native" />
-  <package id="runtime.win-x86.Microsoft.NETCore.DotNetAppHost" version="6.0.4" targetFramework="native" />
-</packages>
\ No newline at end of file
diff --git a/src/ext/Bal/dnchost/precomp.cpp b/src/ext/Bal/dnchost/precomp.cpp
deleted file mode 100644
index 37664a1c..00000000
--- a/src/ext/Bal/dnchost/precomp.cpp
+++ /dev/null
@@ -1,3 +0,0 @@
-// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
-
-#include "precomp.h"
diff --git a/src/ext/Bal/dnchost/precomp.h b/src/ext/Bal/dnchost/precomp.h
deleted file mode 100644
index 2166a23d..00000000
--- a/src/ext/Bal/dnchost/precomp.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#pragma once
-// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
-
-#include <windows.h>
-#include <msiquery.h>
-#include <corerror.h>
-#include <Shlwapi.h>
-
-#include <dutil.h>
-#include <memutil.h>
-#include <pathutil.h>
-#include <strutil.h>
-#include <xmlutil.h>
-
-#include <BootstrapperEngine.h>
-#include <BootstrapperApplication.h>
-
-#include <IBootstrapperEngine.h>
-#include <IBootstrapperApplication.h>
-#include <IBootstrapperApplicationFactory.h>
-#include <balutil.h>
-
-#define NETHOST_USE_AS_STATIC
-#include <nethost.h>
-#include <hostfxr.h>
-#include <coreclr_delegates.h>
-
-#include <preqba.h>
-
-#include "dncutil.h"
-#include "dnchost.h"