Do not start manually C# EtwTrace. FZ engine exit event.

src/modules/AdvancedPaste/AdvancedPaste/AdvancedPasteXAML/App.xaml.cs

@@ -61,8 +61,6 @@ namespace AdvancedPaste
 
             this.InitializeComponent();
 
-            EtwTrace.Start();
-
             Host = Microsoft.Extensions.Hosting.Host.CreateDefaultBuilder().UseContentRoot(AppContext.BaseDirectory).ConfigureServices((context, services) =>
             {
                 services.AddSingleton<OptionsViewModel>();

src/modules/EnvironmentVariables/EnvironmentVariables/EnvironmentVariablesXAML/App.xaml.cs

@@ -80,8 +80,6 @@ namespace EnvironmentVariables
         /// <param name="args">Details about the launch request and process.</param>
         protected override void OnLaunched(Microsoft.UI.Xaml.LaunchActivatedEventArgs args)
         {
-            EtwTrace.Start();
-
             var cmdArgs = Environment.GetCommandLineArgs();
             if (cmdArgs?.Length > 1)
             {

src/modules/Hosts/Hosts/HostsXAML/App.xaml.cs

@@ -107,8 +107,6 @@ namespace Hosts
         /// <param name="args">Details about the launch request and process.</param>
         protected override void OnLaunched(LaunchActivatedEventArgs args)
         {
-            EtwTrace.Start();
-
             var cmdArgs = Environment.GetCommandLineArgs();
             if (cmdArgs?.Length > 1)
             {

src/modules/MouseWithoutBorders/App/Class/Program.cs

@@ -57,8 +57,6 @@ namespace MouseWithoutBorders.Class
 
             ETWTrace etwTrace = new ETWTrace();
 
-            etwTrace.Start();
-
             if (PowerToys.GPOWrapper.GPOWrapper.GetConfiguredMouseWithoutBordersEnabledValue() == PowerToys.GPOWrapper.GpoRuleConfigured.Disabled)
             {
                 Common.Log("Tried to start with a GPO policy setting the utility to always be disabled. Please contact your systems administrator.");

src/modules/MouseWithoutBorders/App/Helper/Program.cs

@@ -40,7 +40,6 @@ namespace MouseWithoutBorders
             }
 
             ETWTrace etwTrace = new ETWTrace();
-            etwTrace.Start();
 
             RunnerHelper.WaitForPowerToysRunnerExitFallback(() =>
             {

src/modules/PowerOCR/PowerOCR/App.xaml.cs

@@ -47,8 +47,6 @@ public partial class App : Application, IDisposable
 
         NativeThreadCTS = new CancellationTokenSource();
 
-        etwTrace.Start();
-
         NativeEventWaiter.WaitForEventLoop(
             Constants.TerminatePowerOCRSharedEvent(),
             this.Shutdown,

src/modules/Workspaces/WorkspacesEditor/App.xaml.cs

@@ -36,7 +36,6 @@ namespace WorkspacesEditor
 
         public App()
         {
-            etwTrace.Start();
             WorkspacesEditorIO = new WorkspacesEditorIO();
         }
 

src/modules/awake/Awake/Program.cs

@@ -52,7 +52,6 @@ namespace Awake
 
         private static int Main(string[] args)
         {
-            _etwTrace.Start();
             _settingsUtils = new SettingsUtils();
             LockMutex = new Mutex(true, Core.Constants.AppName, out bool instantiated);
             Logger.InitializeLogger(Path.Combine("\\", Core.Constants.AppName, "Logs"));

src/modules/colorPicker/ColorPickerUI/App.xaml.cs

@@ -46,7 +46,6 @@ namespace ColorPickerUI
                 Logger.LogError("CultureNotFoundException: " + ex.Message);
             }
 
-            EtwTrace.Start();
             NativeThreadCTS = new CancellationTokenSource();
             ExitToken = NativeThreadCTS.Token;
 

src/modules/fancyzones/FancyZones/FancyZonesApp.cpp

@@ -5,6 +5,7 @@
 #include <common/utils/logger_helper.h>
 #include <common/utils/resources.h>
 #include <common/utils/UnhandledExceptionHandler.h>
+#include <common/interop/shared_constants.h>
 
 #include <FancyZonesLib/Generated Files/resource.h>
 #include <FancyZonesLib/FancyZonesData.h>
@@ -20,6 +21,14 @@ FancyZonesApp::FancyZonesApp(const std::wstring& appName, const std::wstring& ap
     InitializeWinhookEventIds();
     m_app = MakeFancyZones(reinterpret_cast<HINSTANCE>(&__ImageBase), std::bind(&FancyZonesApp::DisableModule, this));
 
+    m_mainThreadId = GetCurrentThreadId();
+    m_exitEventWaiter = EventWaiter(CommonSharedConstants::FZE_EXIT_EVENT, [&](int err) {
+        if (err == ERROR_SUCCESS)
+        {
+            DisableModule();
+        }
+    });
+
     InitHooks();
 
     s_instance = this;
@@ -111,7 +120,7 @@ void FancyZonesApp::InitHooks()
 
 void FancyZonesApp::DisableModule() noexcept
 {
-    PostQuitMessage(0);
+    PostThreadMessage(m_mainThreadId, WM_QUIT, 0, 0);
 }
 
 void FancyZonesApp::HandleWinHookEvent(WinHookEvent* data) noexcept

src/modules/fancyzones/FancyZones/FancyZonesApp.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <common/hooks/LowlevelKeyboardEvent.h>
+#include <common/utils/EventWaiter.h>
 
 #include <FancyZonesLib/FancyZones.h>
 
@@ -15,11 +16,14 @@ public:
 private:
     static inline FancyZonesApp* s_instance = nullptr;
     static inline HHOOK s_llKeyboardHook = nullptr;
-    
+
     winrt::com_ptr<IFancyZones> m_app;
     HWINEVENTHOOK m_objectLocationWinEventHook = nullptr;
     std::vector<HWINEVENTHOOK> m_staticWinEventHooks;
 
+    EventWaiter m_exitEventWaiter;
+    DWORD m_mainThreadId;
+
     void DisableModule() noexcept;
 
     void InitHooks();

src/modules/launcher/PowerLauncher/App.xaml.cs

@@ -96,7 +96,6 @@ namespace PowerLauncher
             using (var application = new App())
             {
                 application.InitializeComponent();
-                application.etwTrace.Start();
 
                 Common.UI.NativeEventWaiter.WaitForEventLoop(
                     Constants.RunExitEvent(),

src/modules/peek/Peek.UI/PeekXAML/App.xaml.cs

@@ -51,8 +51,6 @@ namespace Peek.UI
             InitializeComponent();
             Logger.InitializeLogger("\\Peek\\Logs");
 
-            EtwTrace.Start();
-
             Host = Microsoft.Extensions.Hosting.Host.
             CreateDefaultBuilder().
             UseContentRoot(AppContext.BaseDirectory).

src/modules/poweraccent/PowerAccent.UI/App.xaml.cs

@@ -31,7 +31,6 @@ namespace PowerAccent.UI
             }
 
             base.OnStartup(e);
-            _etwTrace.Start();
         }
 
         protected override void OnExit(ExitEventArgs e)

src/modules/registrypreview/RegistryPreview/RegistryPreviewXAML/App.xaml.cs

@@ -47,7 +47,6 @@ namespace RegistryPreview
             // #if DEBUG
             // System.Diagnostics.Debugger.Launch();
             // #endif
-            EtwTrace.Start();
 
             // Open With... handler - gets activation arguments if they are available.
             AppActivationArguments activatedArgs = AppInstance.GetCurrent().GetActivatedEventArgs();

src/settings-ui/Settings.UI/SettingsXAML/App.xaml.cs

@@ -81,7 +81,6 @@ namespace Microsoft.PowerToys.Settings.UI
             Logger.InitializeLogger(@"\Settings\Logs");
 
             EtwTrace = new ETWTrace();
-            EtwTrace.Start();
 
             string appLanguage = LanguageHelper.LoadLanguage();
             if (!string.IsNullOrEmpty(appLanguage))