[net7.0] Initial code for replacing the deployment manager

.nuspec/Microsoft.Maui.Controls.SingleProject.props

@@ -5,6 +5,8 @@
     <WindowsPackageType Condition=" '$(WindowsPackageType)' == '' and '$(EnableMsixTooling)' == 'true' and '$(OutputType)' == 'WinExe' ">MSIX</WindowsPackageType>
     <WindowsAppSDKSelfContained Condition=" '$(WindowsAppSDKSelfContained)' == '' and '$(WindowsPackageType)' == 'None' and '$(OutputType)' == 'WinExe' ">true</WindowsAppSDKSelfContained>
     <WindowsAppSdkBootstrapInitialize Condition=" '$(WindowsAppSdkBootstrapInitialize)' == '' and '$(EnableMsixTooling)' == 'true' and '$(OutputType)' != 'WinExe' ">false</WindowsAppSdkBootstrapInitialize>
+    <!-- We have our own manager to avoid crashing the app -->
+    <WindowsAppSdkDeploymentManagerInitialize>false</WindowsAppSdkDeploymentManagerInitialize>
     <PublishAppXPackage Condition=" '$(PublishAppXPackage)' == '' and '$(EnableMsixTooling)' == 'true' and '$(WindowsPackageType)' == 'MSIX' ">true</PublishAppXPackage>
     <PublishReadyToRun Condition=" '$(PublishReadyToRun)' == '' and '$(Configuration)' == 'Release' and '$(OutputType)' != '' and '$(OutputType)' != 'Library' ">true</PublishReadyToRun>
     <_SingleProjectRIDRequired Condition="'$(OutputType)' == 'WinExe'">true</_SingleProjectRIDRequired>

src/Core/src/Platform/Windows/DeploymentManagerAutoInitializer.cs

@@ -0,0 +1,50 @@
+using System;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using Microsoft.Extensions.Logging;
+using Microsoft.Windows.ApplicationModel.WindowsAppRuntime;
+
+namespace Microsoft.Maui;
+
+internal static class DeploymentManagerAutoInitializer
+{
+#pragma warning disable CA2255 // The 'ModuleInitializer' attribute should not be used in libraries
+	[ModuleInitializer]
+#pragma warning restore CA2255 // The 'ModuleInitializer' attribute should not be used in libraries
+	[EditorBrowsable(EditorBrowsableState.Never)]
+	internal static void AccessWindowsAppSDK()
+	{
+		try
+		{
+			var options = new DeploymentInitializeOptions();
+			Result = DeploymentManager.Initialize(options);
+		}
+		catch (Exception ex)
+		{
+			Result = new DeploymentResult(DeploymentStatus.Unknown, ex);
+		}
+	}
+
+	public static DeploymentResult Result { get; private set; } = null!;
+
+	public static void LogIfFailed(IServiceProvider services)
+	{
+		if (Result?.Status == DeploymentStatus.Ok)
+			return;
+
+		var logger = services.CreateLogger("Microsoft.Maui.DeploymentManagerAutoInitializer");
+		if (logger is null)
+			return;
+
+		var error = Result?.ExtendedError;
+		if (error is null)
+		{
+			logger.LogError($"Unknown WindowsAppRuntime.DeploymentManager.Initialize error.");
+		}
+		else
+		{
+			var hresult = string.Format("0x{0:X}", error.HResult);
+			logger.LogError(error, "WindowsAppRuntime.DeploymentManager.Initialize error ({HResult}): {ErrorMessage}", hresult, error.Message);
+		}
+	}
+}

src/Core/src/Platform/Windows/MauiWinUIApplication.cs

@@ -28,6 +28,8 @@ protected override void OnLaunched(UI.Xaml.LaunchActivatedEventArgs args)
 
 			Services = applicationContext.Services;
 
+			DeploymentManagerAutoInitializer.LogIfFailed(Services);
+
 			Services.InvokeLifecycleEvents<WindowsLifecycle.OnLaunching>(del => del(this, args));
 
 			Application = Services.GetRequiredService<IApplication>();