A client has an infrastructure that has had different msp's over the years. Originally, they had a SBS 2000 domain. A 2nd msp installed Windows Server 2003 R2 and we think shutdown the SBS 2000 server without demoting, etc.
They haven't used Exchange for years but have decided to go back to using Exchange. We felt going to SBS 2011 Standard makes the most sense
The current AD schema is 31 (Windows Server 2003 R2) but there is an Exchange schema of 4397, (Exchange 2000 RTM).
Is the migration mode the most effective way of doing this SBS 2011 installation? Or would it make more sense to remove all the desktops from the domain to workgroup, install SBS 2011, and then bring each of the computers back to the new domain? Or is there another option?
If the migration mode seems to make the most sense, should I anticipate any issues considering I have a Windows Server 2003 R2 AD schema and an Exchange 2000 schema that I am trying to bring into SBS 2011?