RoutedUICommands in ApplicationMenu

            RibbonCommandUIProvider provider = new RibbonCommandUIProvider("New", null as string, null as string);
            RibbonCommandUIManager.Register(FindResource("NewCommand") as ICommand, provider);

        private void CommandBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = true;
        }

<ribbon:RibbonWindow.Resources>
        <RoutedUICommand x:Key="NewCommand" Text="New"/>
    </ribbon:RibbonWindow.Resources>
    
    <ribbon:RibbonWindow.InputBindings>
        <KeyBinding Command="{StaticResource NewCommand}" Gesture="CTRL+N"/>
    </ribbon:RibbonWindow.InputBindings>
    
    <ribbon:RibbonWindow.CommandBindings>
        <CommandBinding Command="{StaticResource NewCommand}" CanExecute="CommandBinding_CanExecute" Executed="CommandBinding_Executed"/>
    </ribbon:RibbonWindow.CommandBindings>
    
    <ribbon:Ribbon>
        <ribbon:Ribbon.ApplicationMenu>
            <ribbon:ApplicationMenu>
                <ribbon:Button Command="{StaticResource NewCommand}"/>
            </ribbon:ApplicationMenu>
        </ribbon:Ribbon.ApplicationMenu>
    </ribbon:Ribbon>