Ctrl, Alt, Del-disabling the shut down function

From: Russell (anonymous_at_discussions.microsoft.com)
Date: 10/30/03 

Date: Thu, 30 Oct 2003 10:53:05 -0800

Can you disable the shut down function on a per user
basis? I have a machine that many users log into and I
don't want them to have the ability to shut it down,
unless they unplug it.