Migrating an Exchange Cluster Node to a Stand-Alone (Non-Clustered) Server

 

Migrating an Exchange 2003 cluster node (that is, an Exchange Virtual Server) to a stand-alone server is not supported. If you want to migrate a clustered server to a stand-alone server, you must create a third server, and then move mailboxes to the new server.

Similarly, you cannot migrate a stand-alone Exchange 2003 server to an Exchange cluster node.