In tip 0050 and its' links, we discussed Explorer and System settings for locking down the desktop.
Here are a few more Value Names that work if IE 4.01, SP1 Active Desktop or greater is installed. All are type REG_DWORD values. A data value of 0 is off and a data value of 1 is on. Use regedt32 to navigate to:
NoDesktopUpdate - Prevents placing new shortcuts on the desktop?
NoFolderOptions - Removes the Folder Options menu item from the Settings menu.
NoFavoritesMenu - Removes the Favorites folder from the Start menu.
NoRecentDocsMenu - Removes the Documents command from the Start menu.
NoSetActiveDesktop - Remove the Active Desktop item from the Settings menu.
I refuse to install Active Desktop, so I can't test these entries.