public App() { this.InitializeComponent(); // Configure dependency injection. var container = new UnityContainer(); this.ConfigureContainer(container); // Initialize app. this.ViewModelFactory = container.Resolve <IViewModelFactory>(); this.cefConfigureService = container.Resolve <ICefConfigureService>(); this.cefConfigureService.Configure(); // Open the main window. var mainWindow = new MainWindow(); mainWindow.Show(); // Open the notifications window. var notificationsWindow = new NotificationWindow(); notificationsWindow.Show(); // Focus the main window. mainWindow.Focus(); }