Allow in VLF-WIN

Uncheck this option if you do not want this application, business object or command to ever be usable in Windows applications.    

Note that when you execute an application in Design mode, all command handlers and filters are visible, regardless of whether they have been enabled for Windows. To test how your application will appear to your end-user, execute it as user.

This property is in the:

The Commands Allowed tab

The Identification tab