在 System.Speech.Internal.ObjectTokens.RegistryDataKey..ctor(String fullPath, IntPtr regHandle)
   在 System.Speech.Internal.ObjectTokens.RegistryDataKey.Open(String registryPath, Boolean fCreateIfNotExist)
   在 System.Speech.Internal.ObjectTokens.SAPICategories.DefaultDeviceOut()
   在 System.Speech.Internal.Synthesis.VoiceSynthesis..ctor(WeakReference speechSynthesizer)
   在 System.Speech.Synthesis.SpeechSynthesizer.get_VoiceSynthesizer()
   在 Quicker.TextWindow.OnClosed(Object sender, EventArgs e)
   在 System.Windows.Window.OnClosed(EventArgs e)
   在 System.Windows.Window.WmDestroy()
   在 System.Windows.Window.WindowFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)