Settings, console, and diagnostics app updates

build/staging/version/BundleInfo.wxi

@@ -1,4 +1,4 @@
 <Include>
   <?define SetupVersionName="Customer Preview 2 Arm64" ?>
-  <?define SetupVersionNumber="1.0.3-preview-11.250215-2126" ?>
+  <?define SetupVersionNumber="1.0.3-preview-11.250216-1702" ?>
 </Include>

build/staging/version/WindowsMidiServicesVersion.cs

@@ -6,12 +6,12 @@ public static class MidiBuildInformation
 	{
 		public const string Source = "GitHub Preview";
 		public const string Name = "Customer Preview 2";
-		public const string BuildFullVersion = "1.0.3-preview-11.250215-2126";
+		public const string BuildFullVersion = "1.0.3-preview-11.250216-1702";
 		public const string VersionMajor = "1";
 		public const string VersionMinor = "0";
 		public const string VersionRevision = "3";
-		public const string VersionDateNumber = "250215";
-		public const string VersionTimeNumber = "2126";
+		public const string VersionDateNumber = "250216";
+		public const string VersionTimeNumber = "1702";
 	}
 }
 

build/staging/version/WindowsMidiServicesVersion.h

@@ -5,12 +5,12 @@
 
 #define WINDOWS_MIDI_SERVICES_BUILD_SOURCE               L"GitHub Preview"
 #define WINDOWS_MIDI_SERVICES_BUILD_VERSION_NAME         L"Customer Preview 2"
-#define WINDOWS_MIDI_SERVICES_BUILD_VERSION_FULL         L"1.0.3-preview-11.250215-2126"
+#define WINDOWS_MIDI_SERVICES_BUILD_VERSION_FULL         L"1.0.3-preview-11.250216-1702"
 #define WINDOWS_MIDI_SERVICES_BUILD_VERSION_MAJOR        L"1"
 #define WINDOWS_MIDI_SERVICES_BUILD_VERSION_MINOR        L"0"
 #define WINDOWS_MIDI_SERVICES_BUILD_VERSION_REVISION     L"3"
-#define WINDOWS_MIDI_SERVICES_BUILD_VERSION_DATE_NUMBER  L"250215"
-#define WINDOWS_MIDI_SERVICES_BUILD_VERSION_TIME_NUMBER  L"2126"
+#define WINDOWS_MIDI_SERVICES_BUILD_VERSION_DATE_NUMBER  L"250216"
+#define WINDOWS_MIDI_SERVICES_BUILD_VERSION_TIME_NUMBER  L"1702"
 
 #endif
 

docs/developer-how-to/how-to-install-development-builds.md

@@ -70,3 +70,9 @@ If everything worked, you'll see the files reported as being from `Program Files
 In some cases, you may want to leave the existing service, but install only a preview plugin. In that case, the service and other components will still show `System32`, but the new component will show `Program Files` as the location.
 
 > Note: These scripts only know about the plugins we've developed. Additional third-party components will not be shown in the output unless we know about and add them.
+
+## wdmaud2.drv the WinMM bridge to Windows MIDI Services
+
+The WinMM compatibility component, `wdmaud2.drv`, is a system-protected file under Windows 11 Resource Protection (WRP). It is possible to take ownership of it using the `takeown` command, but if you replace it, WRP will kick in and put the official version back in place. The mechanisms used to bypass Windows File Protection (WFP) with older versions of Windows do not necessarily apply here.
+
+[Learn more about Windows Resource Protection](https://learn.microsoft.com/windows/win32/wfp/about-windows-file-protection)

samples/cpp-winrt/basics/client-basics-cpp.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>false</CppWinRTGenerateWindowsMetadata>

samples/cpp-winrt/basics/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
 </packages>

samples/cpp-winrt/loopback-endpoints/loopback-endpoints-cpp.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

samples/cpp-winrt/loopback-endpoints/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
 </packages>

samples/cpp-winrt/send-speed/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
 </packages>

samples/cpp-winrt/send-speed/send-speed-cpp.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

samples/cpp-winrt/simple-app-to-app-midi/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
 </packages>

samples/cpp-winrt/simple-app-to-app-midi/simple-app-to-app-cpp.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

samples/cpp-winrt/static-enum-endpoints/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
 </packages>

samples/cpp-winrt/static-enum-endpoints/static-enum-endpoints-cpp.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

samples/cpp-winrt/watch-endpoints/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
 </packages>

samples/cpp-winrt/watch-endpoints/watch-endpoints-cpp.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

src/api/Inc/MidiDefs.h

@@ -640,7 +640,7 @@ DEFINE_MIDIDEVPROPKEY(PKEY_MIDI_MidiOutLatencyTicksUserOverride, 802);     // DE
 // Starts at 900
 
 #define STRING_PKEY_MIDI_VirtualMidiEndpointAssociator MIDI_STRING_PKEY_GUID MIDI_STRING_PKEY_PID_SEPARATOR L"900"
-DEFINE_MIDIDEVPROPKEY(PKEY_MIDI_VirtualMidiEndpointAssociator, 900);     // DEVPROP_TYPE_GUID
+DEFINE_MIDIDEVPROPKEY(PKEY_MIDI_VirtualMidiEndpointAssociator, 900);     // DEVPROP_TYPE_STRING
 
 
 

src/app-sdk/mididiag/main.cpp

@@ -611,6 +611,24 @@ bool DoSectionMidi2ApiEndpoints(_In_ bool const verbose)
                 OutputStringField(MIDIDIAG_FIELD_LABEL_MIDI2_ENDPOINT_USER_SUPPLIED_DESC, userInfo.Description);
             }
 
+
+            // show any GTBs. This is needed to help debug some winmm enumeration issues
+
+            for (auto const& gtb : device.GetGroupTerminalBlocks())
+            {
+                OutputBlankLine();
+
+                OutputNumericField(MIDIDIAG_FIELD_LABEL_GTB_NUMBER, gtb.Number());
+                OutputStringField(MIDIDIAG_FIELD_LABEL_GTB_NAME, gtb.Name());
+                OutputNumericField(MIDIDIAG_FIELD_LABEL_GTB_FIRST_GROUP, gtb.FirstGroup().DisplayValue());
+                OutputNumericField(MIDIDIAG_FIELD_LABEL_GTB_GROUP_COUNT, gtb.GroupCount());
+            }
+
+            if (device.GetGroupTerminalBlocks().Size() > 0)
+            {
+                OutputBlankLine();
+            }
+
             auto parent = device.GetParentDeviceInformation();
 
             if (parent != nullptr)

src/app-sdk/mididiag/mididiag.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

src/app-sdk/mididiag/mididiag_field_defs.h

@@ -78,6 +78,13 @@
 #define MIDIDIAG_FIELD_LABEL_MIDI2_ENDPOINT_PARENT_ID                    "parent_id"
 #define MIDIDIAG_FIELD_LABEL_MIDI2_ENDPOINT_PARENT_NAME                  "parent_name"
 
+#define MIDIDIAG_FIELD_LABEL_GTB_NUMBER                                  "gtb_number"
+#define MIDIDIAG_FIELD_LABEL_GTB_NAME                                    "gtb_name"
+#define MIDIDIAG_FIELD_LABEL_GTB_FIRST_GROUP                             "gtb_first_group_number"
+#define MIDIDIAG_FIELD_LABEL_GTB_GROUP_COUNT                             "gtb_group_count"
+
+
+
 #define MIDIDIAG_SECTION_LABEL_MIDI1_API_INPUT_ENDPOINTS                 "enum_winrt_midi1_api_input_ports"
 #define MIDIDIAG_SECTION_LABEL_MIDI1_API_OUTPUT_ENDPOINTS                "enum_winrt_midi1_api_output_ports"
 #define MIDIDIAG_FIELD_LABEL_MIDI1_ENDPOINT_ID                           "endpoint_device_id"

src/app-sdk/mididiag/packages.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
   <package id="Microsoft.Windows.ImplementationLibrary" version="1.0.240803.1" targetFramework="native" />
 </packages>

src/app-sdk/midimdnsinfo/midimdnsinfo.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

src/app-sdk/midimdnsinfo/packages.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
   <package id="Microsoft.Windows.ImplementationLibrary" version="1.0.240803.1" targetFramework="native" />
 </packages>

src/app-sdk/midiusbinfo/main.cpp

@@ -569,6 +569,7 @@ int __cdecl main()
     //}
 
     std::cout << std::endl;
+    std::cout << "-- End of Information --" << std::endl << std::endl;
 
     return 0;
 }

src/app-sdk/midiusbinfo/midiusbinfo.vcxproj

@@ -2,7 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.240405.15\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
-    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250215-2126</WindowsMidiServicesSdkPackage>
+    <WindowsMidiServicesSdkPackage>Microsoft.Windows.Devices.Midi2.1.0.3-preview-11.250216-1702</WindowsMidiServicesSdkPackage>
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>

src/app-sdk/midiusbinfo/packages.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Windows.CppWinRT" version="2.0.240405.15" targetFramework="native" />
-  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250215-2126" targetFramework="native" />
+  <package id="Microsoft.Windows.Devices.Midi2" version="1.0.3-preview-11.250216-1702" targetFramework="native" />
   <package id="Microsoft.Windows.ImplementationLibrary" version="1.0.240803.1" targetFramework="native" />
 </packages>

src/app-sdk/winrt/MidiLoopbackEndpointManager.cpp

@@ -170,29 +170,21 @@ namespace winrt::Microsoft::Windows::Devices::Midi2::Endpoints::Loopback::implem
             // this is wasteful to get everything and then iterate, but there's 
             // no AQS way to search using our custom DEVPKEY properties
 
-            winrt::hstring query{ MIDI_ENDPOINT_DEVICE_AQS_FILTER };
-
             for (auto const& ep : endpointsToSearch)
             {
-                auto id = internal::NormalizeEndpointInterfaceIdHStringCopy(ep.EndpointDeviceId());
+                if (ep.GetTransportSuppliedInfo().TransportId != TransportId()) continue;
+                if (ep.EndpointDeviceId() == loopbackEndpoint.EndpointDeviceId()) continue;
+
 
-                // don't process the endpoint that was passed in, of course
-                if (id != loopbackEndpoint.EndpointDeviceId())
+                if (ep.Properties().HasKey(STRING_PKEY_MIDI_VirtualMidiEndpointAssociator) &&
+                    ep.Properties().Lookup(STRING_PKEY_MIDI_VirtualMidiEndpointAssociator) != nullptr)
                 {
-                    if (ep.Properties().HasKey(STRING_PKEY_MIDI_VirtualMidiEndpointAssociator) && 
-                        ep.Properties().Lookup(STRING_PKEY_MIDI_VirtualMidiEndpointAssociator) != nullptr)
+                    auto thisAssociator = winrt::unbox_value<winrt::hstring>(ep.Properties().Lookup(STRING_PKEY_MIDI_VirtualMidiEndpointAssociator));
+
+                    // return the endpoint if it has the matching association id
+                    if (thisAssociator == associator)
                     {
-                        auto thisAssociator = winrt::unbox_value<winrt::hstring>(loopbackEndpoint.Properties().Lookup(STRING_PKEY_MIDI_VirtualMidiEndpointAssociator));
-
-                        if (!thisAssociator.empty())
-                        {
-                            // return the endpoint if it has the matching association id
-                            if (thisAssociator == associator)
-                            {
-                                // create the endpoint
-                                return MidiEndpointDeviceInformation::CreateFromEndpointDeviceId(id);
-                            }
-                        }
+                        return ep;
                     }
                 }
             }

src/dev-tools/reg-helpers/midi-pre-install-reg-steps.ps1

@@ -167,6 +167,8 @@ if ($confirmation -eq 'y' -or $confirmation -eq 'Y')
 
     Write-Host "Taking ownership of wdmaud2.drv..." -ForegroundColor DarkCyan
     cmd.exe /c "takeown /F %windir%\System32\wdmaud2.drv"
+    #cmd.exe /c "icacls %windir%\System32\wdmaud2.drv /grant administrators:F"
+    Write-Host "wdmaud2.drv is protected by Windows Resource Protection (WRP) and cannot be replaced in public builds without first disabling WRP." -ForegroundColor DarkCyan
 
     Write-Host
     Write-Host "You may now install the development version of the service and plugins." -ForegroundColor Green