The CAB kit contains all needed wrappers to start using Telerik UI for WinForms with the CAB framework right away. It also comes with documentation and a reference application to decrease the learning curve and to help you quickly get you up to speed.
The Telerik CAB Enabling Kit for WinForms comes with a sample app modeled after the famous WPF WoodGrove Finance Application. It uses the CAB framework and Telerik controls.