Disable all items
User Configuration\AdministrativeTemplates\Desktop\Active Desktop
Removes Active Desktop content and prevents users from adding Active Desktop content.
This policy removes all Active Desktop items from the desktop. It also removes the Web tab from Display in Control Panel and removes the New Desktop Item command from the Active Desktop menu. As a result, users cannot add Web pages or pictures from the Internet or an intranet to the desktop.
This policy does not disable Active Desktop. Users can still use image formats, such as JPEG and GIF, for their desktop wallpaper.
To make changes to this policy effective, you must log off of Windows 2000 and then log on again. (The Explain tab in Group Policy fails to mention this requirement.)