public void Shutdown()
{
//ShutDown Services
ShellViewModel.Shutdown();
SyncService.Shutdown();
PropertyChangedEventManager.RemoveHandler(SyncService, SyncServiceNotificationHandler, "");
ShellViewModel.Settings.SettingsVersion = ApplicationInfo.Version;
_settingsSerializationService.SerializeSettings(ShellViewModel.Settings);
_summarySerializationService.SerializeSyncSummary(ShellViewModel.SyncSummary);
_systemTrayNotifierViewModel.Quit();
}
