Add WinML 2.0 preview samples

Add the WinML 2.0 verification samples and the minimal SDK, packaging, and target-framework support required to run them against the preview WinML stack.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: bmehta001

.pipelines/templates/build-core-steps.yml

@@ -58,7 +58,7 @@ steps:
     inputs:
       command: restore
       projects: '$(nsRoot)/src/FoundryLocalCore/Core/Core.csproj'
-      restoreArguments: '-r ${{ parameters.flavor }} /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.26100.0 /p:UseWinML=true'
+      restoreArguments: '-r ${{ parameters.flavor }} /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.18362.0 /p:UseWinML=true'
       feedsToUse: config
       nugetConfigPath: '$(nsRoot)/nuget.config'
 
@@ -67,14 +67,14 @@ steps:
     inputs:
       command: build
       projects: '$(nsRoot)/src/FoundryLocalCore/Core/Core.csproj'
-      arguments: '--no-restore -r ${{ parameters.flavor }} -f net9.0-windows10.0.26100.0 /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.26100.0 /p:UseWinML=true'
+      arguments: '--no-restore -r ${{ parameters.flavor }} -f net9.0-windows10.0.18362.0 /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.18362.0 /p:UseWinML=true'
 
   - task: DotNetCoreCLI@2
     displayName: 'Publish FLC AOT ${{ parameters.flavor }} (WinML)'
     inputs:
       command: publish
       projects: '$(nsRoot)/src/FoundryLocalCore/Core/Core.csproj'
-      arguments: '--no-restore --no-build -r ${{ parameters.flavor }} -f net9.0-windows10.0.26100.0 /p:Platform=${{ parameters.platform }} /p:Configuration=Release /p:PublishAot=true /p:NetTargetFramework=net9.0-windows10.0.26100.0 /p:UseWinML=true'
+      arguments: '--no-restore --no-build -r ${{ parameters.flavor }} -f net9.0-windows10.0.18362.0 /p:Platform=${{ parameters.platform }} /p:Configuration=Release /p:PublishAot=true /p:NetTargetFramework=net9.0-windows10.0.18362.0 /p:UseWinML=true'
       publishWebProjects: false
       zipAfterPublish: false
 
@@ -84,7 +84,7 @@ steps:
       inputs:
         command: restore
         projects: '$(nsRoot)/test/FoundryLocalCore/Core/FoundryLocalCore.Tests.csproj'
-        restoreArguments: '-r ${{ parameters.flavor }} /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.26100.0 /p:UseWinML=true'
+        restoreArguments: '-r ${{ parameters.flavor }} /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.18362.0 /p:UseWinML=true'
         feedsToUse: config
         nugetConfigPath: '$(nsRoot)/nuget.config'
 
@@ -93,7 +93,7 @@ steps:
       inputs:
         command: build
         projects: '$(nsRoot)/test/FoundryLocalCore/Core/FoundryLocalCore.Tests.csproj'
-        arguments: '--no-restore -r ${{ parameters.flavor }} /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.26100.0 /p:UseWinML=true'
+        arguments: '--no-restore -r ${{ parameters.flavor }} /p:Platform=${{ parameters.platform }} /p:IncludeWebService=true /p:Configuration=Release /p:NetTargetFramework=net9.0-windows10.0.18362.0 /p:UseWinML=true'
 
     - task: DotNetCoreCLI@2
       displayName: 'Test FLC ${{ parameters.flavor }} (WinML)'

.pipelines/templates/package-core-steps.yml

@@ -100,10 +100,14 @@ steps:
       if ("${{ parameters.isWinML }}" -eq "True") {
         $nuspec = "$nsRoot/src/FoundryLocalCore/Core/WinMLNuget.nuspec"
         $id = "Microsoft.AI.Foundry.Local.Core.WinML"
-        $ortVer = $pg.OnnxRuntimeFoundryVersionForWinML
-        $genaiVer = $pg.OnnxRuntimeGenAIFoundryVersion
-        $winAppSdkVer = $pg.WinAppSdkVersion
-        $props = "id=$id;version=$(flcVersion);commitId=$(Build.SourceVersion);OnnxRuntimeFoundryVersionForWinML=$ortVer;OnnxRuntimeGenAIFoundryVersion=$genaiVer;WinAppSdkVersion=$winAppSdkVer"
+        $ortVer = [string]$pg.OnnxRuntimeFoundryVersionForWinML
+        $genaiVer = [string]$pg.OnnxRuntimeGenAIFoundryVersion
+        $winMLVer = [string]$pg.WinMLVersion
+        if ([string]::IsNullOrWhiteSpace($ortVer)) { throw "Directory.Packages.props is missing OnnxRuntimeFoundryVersionForWinML." }
+        if ([string]::IsNullOrWhiteSpace($genaiVer)) { throw "Directory.Packages.props is missing OnnxRuntimeGenAIFoundryVersion." }
+        if ([string]::IsNullOrWhiteSpace($winMLVer)) { throw "Directory.Packages.props is missing WinMLVersion." }
+
+        $props = "id=$id;version=$(flcVersion);commitId=$(Build.SourceVersion);OnnxRuntimeFoundryVersionForWinML=$ortVer;OnnxRuntimeGenAIFoundryVersion=$genaiVer;WinMLVersion=$winMLVer"
       } else {
         $nuspec = "$nsRoot/src/FoundryLocalCore/Core/NativeNuget.nuspec"
         $id = "Microsoft.AI.Foundry.Local.Core"

samples/README.md

@@ -12,3 +12,4 @@ Explore complete working examples that demonstrate how to use Foundry Local —
 | [**JavaScript**](js/) | 13 | Node.js SDK samples including native chat, embeddings, audio transcription, Electron desktop app, Copilot SDK integration, LangChain, tool calling, web server, and tutorials. |
 | [**Python**](python/) | 10 | Python samples using the OpenAI-compatible API, including chat, embeddings, audio transcription, LangChain integration, tool calling, web server, and tutorials. |
 | [**Rust**](rust/) | 9 | Rust SDK samples including native chat, embeddings, audio transcription, tool calling, web server, and tutorials. |
+| [**C++**](cpp/) | 2 | C++ SDK samples including WinML EP verification and live audio transcription. |

samples/cpp/verify-winml/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.20)
+
+project(VerifyWinMLCpp LANGUAGES CXX)
+
+set(BUILD_TESTING OFF CACHE BOOL "Build C++ SDK tests" FORCE)
+add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/../../../sdk/cpp" "${CMAKE_CURRENT_BINARY_DIR}/sdk-cpp")
+
+add_executable(VerifyWinML main.cpp)
+target_compile_features(VerifyWinML PRIVATE cxx_std_17)
+target_link_libraries(VerifyWinML PRIVATE CppSdk)

samples/cpp/verify-winml/README.md

@@ -0,0 +1,41 @@
+# Verify WinML 2.0 Execution Providers (C++)
+
+This sample verifies that WinML 2.0 execution providers are correctly
+discovered, downloaded, and registered using the Foundry Local C++ SDK. It then
+uses registered WinML EP-backed model variants and finishes with one native
+streaming chat check.
+
+## Prerequisites
+
+- Windows with a compatible GPU or NPU
+- Windows App SDK 2.0 runtime installed
+- A Foundry Local WinML native runtime copied next to the sample executable
+
+The C++ SDK loads `Microsoft.AI.Foundry.Local.Core.dll` from the executable
+directory. Build or install a WinML-enabled SDK/runtime first, then copy the
+WinML native binaries next to `VerifyWinML.exe` before running the sample.
+
+## Build
+
+From this directory:
+
+```powershell
+cmake -S . -B out\build -G "Visual Studio 18 2026" -A x64 `
+  -DCMAKE_TOOLCHAIN_FILE="$env:VCPKG_ROOT\scripts\buildsystems\vcpkg.cmake" `
+  -DVCPKG_TARGET_TRIPLET=x64-windows-static-md
+
+cmake --build out\build --config Debug --target VerifyWinML
+```
+
+## Run
+
+```powershell
+.\out\build\Debug\VerifyWinML.exe
+```
+
+## What it tests
+
+1. **EP Discovery** - Lists all available execution providers.
+2. **EP Download & Registration** - Downloads and registers the available WinML EPs.
+3. **Model Catalog** - Lists text model variants backed by registered accelerated EPs.
+4. **Streaming Chat** - Runs streaming chat completion on a WinML EP-backed model via the native C++ SDK.