Pre-deployment, you can prevent the games' installation using your answer file. See REF.CHM in DEPLOY.CAB on your Windows 2000 CD. It's in the SupportTools folder. After deployment, the job is much more difficult. Windows XP supports software restriction policies, however, which makes it easy to prevent users from running these games. Corporate policy and communication is the best solution, however. No software policy is going to prevent users from running other games without completely locking down the desktop. You're not likely to get away with that with most users, particularly management, knowledge works and so on.
This was first published in November 2002