Yes.. Exchange 2000 will not run on a Windows 2003 Server. You have to upgrade the Exchange software first then the OS later. Exchange 2003 has a deployment software that comes with the CD that guides you to either upgrade the existing exchange server from 2K to 2K3 or install brand new. Its really easy and took me about 1 hr to complete everything. I did an upgrade on an existing server since we only had 1 email server. FYI: if you have any front-end servers, those either need to be removed if you don't need them anymore or upgraded FIRST before your back-end servers get done. Also there are some connectors and Mobile Information Services also have to be removed prior to any upgrades. There is a TID on microsoft website that explains everything. Brandon San Miguel Spurs Sports & Entertainment Network Engineer Ph: 210-444-5152 -----Original Message----- From: Chris Chauv [mailto:chrisc@xxxxxxxxxxxxxxxxxxxxx] Sent: Tuesday, January 04, 2005 1:50 PM To: [ExchangeList] Subject: [exchangelist] Upgrading from 2000 to 2003 http://www.MSExchange.org/ Hi all, Can someone tell me what is the correct upgrade path. I currently have an Exchange Server 2000 running on Windows 2000 in a Windows 2000 AD Domain. Eventually I want to upgrade both the domain and Exchange to 2003. Should I leave the domain intact first and upgrade the server to 20003 and then exchanger server to 2003 or do the opposite? Please advise. Thank you. -chris ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: bsanmiguel@xxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx