I am preparing my peer 2003 active directory environment for exchange 2010. We currently run Exchange 2003 sp2. The setup.com /pl command fails saying I have one or more "Active Directory Connectors" and to remove them. After a bit of researching it looks to be a fairly easy task, just run the tool from the exchange 2003 install media.
My question is whether or not this will cause problems with the Exchange 2003 server that is currently running in my environment. I am going for a co-existing install with Exchange 2010 so we can migrate mailboxes a little at a time and they both need to be working at the same time until everything is migrated. The Exchange 2003 machine runs on Server 2003 sp2 and the Exchange 2010 is on Server 2008 R2.