prevent users from installing software

From: sam (anonymous_at_discussions.microsoft.com)
Date: 11/05/03 

Date: Wed, 5 Nov 2003 07:41:57 -0800

i have xp. how do i prevent users from installing
software? where and what in the adminstrator do i change
to prevent others from installing software?

when this is done what does that involve does everyone
need to access with a password or just the adminstrator?