Create a key called MMC under “HKEY_CURRENT_USER\Software\Policies\Microsoft\” and create a DWORD called “RestrictToPermittedSnapins”. Set its value as 1.

http://www.marskarthik.com/images/DisableManageXP.JPG

Now will get the below error when you select Manage item from “My Computer” right click menu.

http://www.marskarthik.com/images/ErrorManage.JPG

This will prevent accessing MMC snapins in Windows XP.

Windows OS System Security Registry Tricks

Windows OS Network Security Registry Tricks

Windows NT Registry Tricks

Windows ME Registry Tricks

Windows Explorer Security Registry Tricks

MSDOS Security Registry Tricks

Miscellaneous Registry Tricks