private void Window_Loaded(object sender, RoutedEventArgs e)
 {
     FillComboBoxes();
     if (Settings.SavedFile != null)
     {
         settings = Settings.SavedFile.Copy();
     }
     else
     {
         settings = SettingsFile.DefaultValues();
     }
     this.DataContext = settings;
     currentPlayer    = settings.MediaPlayerApp;
     MediaPlayerCombo_LostKeyboardFocus(null, null);
 }