Stage 3: Adding the TabWorkspace

1. Drag a SplitContainer control onto the form ShellForm.cs .
   
   
2. Right-click the Toolbox, click Items..., and then click Browse.....
   In the \Src\CS\CompositeUI.WinForms\bin\Debug\ subfolder of the folder where you installed the CAB files, select the file Microsoft.Practices.CompositeUI.WinForms.dll.
   
   
3. Drag a TabWorkspace onto the form and drop it onto the left-hand panel of the SplitContainer control.