Настройки запуска App "OnExplicitShutdown"

protected override void OnStartup(StartupEventArgs e)
{
    base.OnStartup(e);
 
    IViewModelsService _viewModelsService = Current.Services.GetService<IViewModelsService>();
    IBackgroundTaskQueue _taskQueue = Current.Services.GetService<IBackgroundTaskQueue>();
 
    if (SingleInstance.AlreadyRunning())
    {
        Current.Shutdown(); // Just shutdown the current application, if any instance found.
    }
 
    // Для сигнала инсталятору о запущенном приложении
    _ = new Mutex(false, "DBClient");
 
    Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo("ru-RU");
    Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo("ru-RU");
    FrameworkElement.LanguageProperty.OverrideMetadata(typeof(FrameworkElement),
          new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));
 
    _viewModelsService
        .Register<MainWindowVM, MainWindow>()
        .Register<CPSAddSpecificationDetailDialogVM, CPSAddSpecificationDetailDialog>()
        .Register<CPSContractEditDialogVM, CPSContractEditDialog>()
        .Register<CPSContractSelectDialogVM, CPSContractSelectDialog>()
        .Register<CPSDetailsPreviewDialogVM, CPSDetailsPreviewDialog>()
        .Register<CPSHeadersPreviewDialogVM, CPSHeadersPreviewDialog>()
        .Register<DrawAddDialogVM, DrawAddDialog>()
        .Register<DrawEditDialogVM, DrawEditDialog>()
        .Register<DrawRenameDialogVM, DrawRenameDialog>()
        .Register<DSpecificationPreviewDialogVM, DSpecificationPreviewDialog>()
        .Register<EObjectAddDialogVM, EObjectAddDialog>()
        .Register<EObjectEditDialogVM, EObjectEditDialog>()
        .Register<EObjectsDialogVM, EObjectsDialog>()
        .Register<EObjectSelectDialogVM, EObjectSelectDialog>()
        .Register<GPlanAddDialogVM, GPlanAddDialog>()
        .Register<GPlanEditDialogVM, GPlanEditDialog>()
        .Register<GPlansDialogVM, GPlansDialog>()
        .Register<MDrawSummaryDialogVM, MDrawSummaryDialog>()
        .Register<MiMVehiclesAddDialogVM, MiMVehiclesAddDialog>()
        .Register<MiMVehiclesDialogVM, MiMVehiclesDialog>()
        .Register<MiMWorkAddDialogVM, MiMWorkAddDialog>()
        .Register<MiMWorksStatementDialogVM, MiMWorksStatementDialog>()
        .Register<MRAddSpecificationDetailDialogVM, MRAddSpecificationDetailDialog>()
        .Register<MSummaryPreviewDialogVM, MSummaryPreviewDialog>()
        .Register<NZPreviewDialogVM, NZPreviewDialog>()
        .Register<ONZCreateDialogVM, ONZCreateDialog>()
        .Register<ONZPreviewDialogVM, ONZPreviewDialog>()
        .Register<ONZRenameForemanDialogVM, ONZRenameForemanDialog>()
        .Register<ONZReportDialogVM, ONZReportDialog>()
        .Register<ONZSelectDialogVM, ONZSelectDialog>()
        .Register<WorkDrawDataSetDialogVM, WorkDrawDataSetDialog>()
        .Register<CPSSpecificationWindowVM, CPSSpecificationWindow>()
        .Register<CPSWindowVM, CPSWindow>()
        .Register<DDProgressWindowVM, DDProgressWindow>()
        .Register<DrawDetailsReportWindowVM, DrawDetailsReportWindow>()
        .Register<DrawEditWindowVM, DrawEditWindow>()
        .Register<LaborHBSearchWindowVM, LaborHBSearchWindow>()
        .Register<LaborHBWindowVM, LaborHBWindow>()
        .Register<MDrawEditWindowVM, MDrawEditWindow>()
        .Register<MiMProgressWindowVM, MiMProgressWindow>()
        .Register<MiMReportWindowVM, MiMReportWindow>()
        .Register<MRNZWindowVM, MRNZWindow>()
        .Register<MRPreviewWindowVM, MRPreviewWindow>()
        .Register<MRSpecificationWindowVM, MRSpecificationWindow>()
        .Register<MStorageDataInputWindowVM, MStorageDataInputWindow>()
        .Register<NZEditWindowVM, NZEditWindow>()
        .Register<NZViewingWindowVM, NZViewingWindow>()
        .Register<ONZEditWindowVM, ONZEditWindow>()
        .Register<ONZFactWindowVM, ONZFactWindow>()
        .Register<ONZViewingWindowVM, ONZViewingWindow>()
        .Register<ReportByDateWindowVM, ReportByDateWindow>()
        .Register<WorkDrawDataWindowVM, WorkDrawDataWindow>()
        .Register<WeldingHBDialogVM, WeldingHBDialog>()
        .Register<WeldingHBEditDialogVM, WeldingHBEditDialog>()
        .Register<WeldingWeldersWindowVM, WeldingWeldersWindow>()
        .Register<WeldingSpecificationWindowVM, WeldingSpecificationWindow>()
        .Register<WeldingSpecificationPreviewDialogVM, WeldingSpecificationPreviewDialog>()
        .Register<WeldingSpecificationHBWindowVM, WeldingSpecificationHBWindow>()
        .Register<WeldingSearchHBDialogVM, WeldingSearchHBDialog>()
        .Register<WeldingProgressWindowVM, WeldingProgressWindow>()
        .Register<DrawSpecificationVM, DrawSpecificationWindow>()
        .Register<GPlanDrawListWindowVM, GPlanDrawListWindow>()
        .Register<HBMachineDialogVM, HBMachineDialog>()
        .Register<HBMachineTypesDialogVM, HBMachineTypesDialog>()
        .Register<LaborHBGroupWindowVM, LaborHBGroupWindow>()
        .Register<MSGWorkersWindowVM, MSGWorkersWindow>()
        .Register<MSGWorkersReportWindowVM, MSGWorkersReportWindow>()
        .Register<PPWorkHBWindowVM, PPWorkHBWindow>()
        .Register<WeldingAddOrderDialogVM, WeldingAddOrderDialog>()
        .Register<PPWorkSetDialogVM, PPWorkSetDialog>();
 
    _taskQueue.Start();
 
    MainWindow = new MainWindow { DataContext = Current.Services.GetService<IMainWindowVM>() };
    MainWindow.Show();
 
    CheckFolders();
 
    CheckUpdates();
}

        private void Application_Startup(object sender, StartupEventArgs e)
        {
 
            ShutdownMode = ShutdownMode.OnExplicitShutdown; 
 
         }

        private void Application_Startup(object sender, StartupEventArgs e)
        {
 
            ShutdownMode = ShutdownMode.OnExplicitShutdown; 
 
         }