Hey guys, If I have an existing Exchange 2000 Server installed on a Windows 2000 Active Directory domain controller, can I install an Exchange 2003 Server on a Windows Server 2003 Server in the same domain? If so, can I move user mailboxes from the Exchange 2000 Server to the Exchange 2003 Server? If so, can users who have mailboxes on the Exchange 2003 Server access the enhanced OWA and OMA services on the Exchange 2003 Server? Thanks! Tom Thomas W Shinder www.isaserver.org/shinder ISA 2004 Beta - Get it now! http://www.microsoft.com/isaserver/beta/default.asp ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp