You can run Exchange 2003 on a Windows 2000 server is a Windows 2000 domain if you want. -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx on behalf of Robinson, Nick Sent: Tue 9/28/2004 6:10 AM To: thin@xxxxxxxxxxxxx Cc: Subject: [THIN] exchange 2003 I apologize for this off subject. I’m about to install 2003 exchange server and would like to install it on a 2003 server. Problem is I don’t have any 2003 server boxes running. I seem to remember that the first 2003 server upgrade in a domain should be (or has to be) a domain controller? Can anyone tell me if I’m making this up or if there is fact behind that? Thanks Nick PS. Anyone know how to share GALs or create a GAL as an address book between trusted domains? Its not the same forest, organization or anything, only trusted.