Sounds like a small implementation, so I would start by wondering what the intent for getting there is? Likely the best way to migrate will be to add another Exchange machine since you otherwise have some integration nightmares that will take some dev/test time away from the project. Have a look at what it takes to use an ADC migration method and see if that helps. It offers you a way to migrate in a more controlled method in that environment vs. a single weekend rush. Al -----Original Message----- From: Keith Duemling [mailto:kduemling@xxxxxxx] Sent: Tuesday, March 02, 2004 8:02 PM To: [ExchangeList] Subject: [exchangelist] Exchange 5.5 to 2003 Migration http://www.MSExchange.org/ Thanks in advance. I've been tasked with upgrading on of our clients from a single machine running Exchange 5.5 to a new box that will run Windows 2003/Exchange 2003. Picked up the Microsoft implementation/migration guide, but I wanted some more in the field thoughts. Anyone have any suggestions or known issues they can make me aware of. I'm specifically concerned with how to get Exchange from 5.5 to 2003 on the box. Below is a little background on the machines involved. The final platform and version of Exchange have not been decided yet, and probably won't be official until I push back and get some realistic timeframes in the statement of work. Thank you for any help you can provide. Server A (Current config) Windows NT/2000 (have yet to get all the info on this) DNS Service DHCP Service Exchange 5.5/OWA Symantec AntiVirus File Sharing Print Server 3rd Party Client/Server App ============================================= Proposed Configuration Server A Windows NT/2000 Symantec AntiVirus File Sharing Print Server 3rd Party Client/Server App Server B Windows 2000/2003 DNS Service DHCP Service Exchange 2000/2003 and OWA Keith Duemling MCP, Security+, Server+ ------------------------------------------------------ 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: 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 ------------------------------------------------------