Show a dialog to the user when app execution alias is disabled and want to run PI as admin

common/Extensions/WindowExExtensions.cs

@@ -50,7 +50,7 @@ await window.ShowMessageDialogAsync(dialog =>
     /// </summary>
     /// <param name="window">Target window.</param>
     /// <param name="action">Action performed on the created dialog.</param>
-    private static async Task ShowMessageDialogAsync(this Window window, Action<ContentDialog> action)
+    public static async Task ShowMessageDialogAsync(this Window window, Action<ContentDialog> action)
     {
         var dialog = new ContentDialog()
         {

tools/PI/DevHome.PI/Helpers/CommonHelper.cs

@@ -2,13 +2,15 @@
 // Licensed under the MIT License.
 
 using System;
+using System.ComponentModel;
 using System.Diagnostics;
 using System.IO;
 using DevHome.Common.Extensions;
 using DevHome.Common.Services;
 using Microsoft.UI.Xaml;
 using Serilog;
 using Windows.ApplicationModel;
+using Windows.Win32.Foundation;
 
 namespace DevHome.PI.Helpers;
 
@@ -54,9 +56,18 @@ internal static void RunAsAdmin(int pid, string pageName)
             var primaryWindow = Application.Current.GetService<PrimaryWindow>();
             primaryWindow.Close();
         }
-        catch (Exception ex)
+        catch (Win32Exception ex)
         {
-            _log.Error(ex, "UAC to run PI as admin was denied");
+            _log.Error(ex, "Could not run PI as admin");
+            if (ex.NativeErrorCode == (int)WIN32_ERROR.ERROR_CANT_ACCESS_FILE)
+            {
+                var barWindow = Application.Current.GetService<PrimaryWindow>().DBarWindow;
+                barWindow?.ShowDialogToEnableAppExecutionAlias();
+            }
+            else if (ex.NativeErrorCode == (int)WIN32_ERROR.ERROR_CANCELLED)
+            {
+                _log.Error(ex, "UAC to run PI as admin was denied");
+            }
         }
     }
 }

tools/PI/DevHome.PI/Strings/en-us/Resources.resw

@@ -933,6 +933,18 @@
     <value>X64 process running on X64 machine</value>
     <comment>Message text when the process is x64 CPU architecture running on an X64 CPU machine.</comment>
   </data>
+  <data name="AliasDisabledDialogButtonText" xml:space="preserve">
+    <value>Go to Advanced app settings</value>
+    <comment>Content Dialog button text which on click opens the Advanced App settings page in Windows Settings app.</comment>
+  </data>
+  <data name="AliasDisabledDialogContent" xml:space="preserve">
+    <value>Go to Windows Settings &gt; Apps &gt; Advanced app settings &gt; App execution alias &gt; Project Ironsides &gt; Enable the toggle and try to launch PI as admin again.</value>
+    <comment>Locked="{Ironsides}" Content Dialog content suggesting users steps to enable app execution alias from Windows Settings app</comment>
+  </data>
+  <data name="AliasDisabledDialogTitle" xml:space="preserve">
+    <value>Enable App Execution Alias for Project Ironsides and try again</value>
+    <comment>Locked="{Ironsides}" Content Dialog title to enable app execution alias for Project Ironsides</comment>
+  </data>
   <data name="DetachAppButton.Content" xml:space="preserve">
     <value>Detach from target app</value>
     <comment>Button in the expanded view to detach from the target app</comment>
@@ -945,4 +957,4 @@
     <value>Detach</value>
     <comment>Menu Item that allows the user to detach from the current process</comment>
   </data>
-</root>
+</root>

tools/PI/DevHome.PI/ViewModels/BarWindowViewModel.cs

@@ -16,6 +16,7 @@
 using Microsoft.UI.Xaml.Controls;
 using Microsoft.UI.Xaml.Media.Imaging;
 using Windows.Graphics;
+using Windows.System;
 using Windows.Win32.Foundation;
 using Windows.Win32.Graphics.Gdi;
 
@@ -345,4 +346,10 @@ private void InvokeTool(ExternalTool tool, int? pid, HWND hWnd)
                 Windows.Win32.UI.WindowsAndMessaging.MESSAGEBOX_STYLE.MB_ICONERROR);
         }
     }
+
+    [RelayCommand]
+    public void LaunchAdvancedAppsPageInWindowsSettings()
+    {
+        _ = Launcher.LaunchUriAsync(new("ms-settings:advanced-apps"));
+    }
 }

tools/PI/DevHome.PI/Views/BarWindow.cs

@@ -5,6 +5,7 @@
 using System.Collections.Generic;
 using System.ComponentModel;
 using DevHome.Common.Extensions;
+using DevHome.PI.Helpers;
 using DevHome.PI.Models;
 using DevHome.PI.Properties;
 using DevHome.PI.ViewModels;
@@ -18,6 +19,10 @@ namespace DevHome.PI.Views;
 
 public partial class BarWindow
 {
+    private readonly string _aliasDisabledDialogTitle = CommonHelper.GetLocalizedString("AliasDisabledDialogTitle");
+    private readonly string _aliasDisabledDialogContent = CommonHelper.GetLocalizedString("AliasDisabledDialogContent");
+    private readonly string _aliasDisabledDialogButtonText = CommonHelper.GetLocalizedString("AliasDisabledDialogButtonText");
+
     private readonly Settings _settings = Settings.Default;
     private readonly BarWindowHorizontal _horizontalWindow;
     private readonly BarWindowVertical _verticalWindow;
@@ -117,6 +122,21 @@ private void ViewModel_PropertyChanged(object? sender, PropertyChangedEventArgs
         }
     }
 
+    public void ShowDialogToEnableAppExecutionAlias()
+    {
+        _ = _horizontalWindow.ShowMessageDialogAsync(dialog =>
+        {
+            dialog.Title = _aliasDisabledDialogTitle;
+            dialog.Content = new TextBlock()
+            {
+                Text = _aliasDisabledDialogContent,
+                TextWrapping = TextWrapping.WrapWholeWords,
+            };
+            dialog.PrimaryButtonText = _aliasDisabledDialogButtonText;
+            dialog.PrimaryButtonCommand = _viewModel.LaunchAdvancedAppsPageInWindowsSettingsCommand;
+        });
+    }
+
     public void RotateBar()
     {
         if (_horizontalWindow.Visible)