Virgo_Mask/RecipeEditorControl/View/RecipeHelpView.xaml

<Window x:Class="Aitex.UI.RecipeEditor.RecipeHelpView"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Help" Height="275" Width="479"  WindowStyle="SingleBorderWindow" 
        xmlns:app="clr-namespace:Aitex.UI.RecipeEditor"
        Topmost="True" WindowStartupLocation="CenterOwner" 
        xmlns:toolkit="clr-namespace:Xceed.Wpf.Toolkit;assembly=Xceed.Wpf.Toolkit"
        Background="White" FontFamily="Arial,SimSun" ResizeMode="CanResize">
        <toolkit:RichTextBox x:Name="_richTextBox" BorderBrush="Gray" IsReadOnly="True" Text="{Binding Notes}"  ScrollViewer.VerticalScrollBarVisibility="Auto" />
</Window>