If I were in your position, I would take a couple of old desktops and attempt the transition on them (put Win 2K server on one, Win 2K3 on the other). This will give you the experience, without risking your production system. +-------------------------------------------+ | Michael Surato | | College of Arts and Letters | | Michigan State University | | 320 Linton Hall | | East Lansing, MI 48824 | | Voice: (517) 353-0778 Fax: (517) 355-0159 | +-------------------------------------------+ -----Original Message----- From: MSU Network Administrators Group [mailto:[log in to unmask]] On Behalf Of Oscar Castaneda Sent: Thursday, September 06, 2007 9:33 AM To: [log in to unmask] Subject: [MSUNAG] upgrading domain controller List, I am running a windows domain with a domain controller on Windows 2000. I have a new server with Windows 2003 and I want to make it the domain controller. The 2003 server is brand new, I haven't even turn it on. I had been reading what I found available in the internet about a 2003 taking over a domain from a 2000 but I would like to listen stories or experiences of people who went through this transition before. I am sure that many of you already did it. According with what I had seen, it seems to be an straight forward procedure, but you never know and I would not like to make my network go down. -- Oscar Castaneda Michigan State University