Creating Powerusers on Windows 2003

Hello 🙂

I have a Windows 2003 Domain Server. I also have a dozen Windows 2000 workstations.
On the server I have multiple users who are Global Users. When they login to their Windows 2000 workstations I want them to be logged in as Power Users. Since Windows 2003 AD doesn’t have Poweruser group, is there a script or a way that I can make the Global Users become power users on their local machines?
Thanx in advance