You might try this info posted by Nancy Stokes a few months ago.

"The solution, in W2k, is to login as an admin, and change the rights on the 2 files, c:\winnt\msoprefs.232 and msoclip.232 to give the users write access, and then goto the advanced permissions, and remove the delete option. I tested it on our W2k desktop, and it works fine. You have to take off the delete permission"