I am running Win XP Pro and am currently facing an annoying situation. I am the adminstrator of the computer, and the impatient local users of the PC have been rebooting and shutting down the computer in order to speed up their accounts. I usually leave my account running dvd ripping and converting while i'm not there. Due to the intense memory eating habits of these programs, they tend to slow the computer down when other accounts are opened. I must add that i am a super tweaker and one of those people that can't stand anything extra running in the background. I have a handful very crucial processes running and nothing else. All spyware, adware and trojans are cleaned regularly with utter joy. Now the question for any hardcore windows users out there, how do i prevent these 2 users from shutting down or restarting the computer. I would still like them to be able to log off and switch users but no shutting down. Please help!!!