I had installed Exchange 2010 in a 2003 environment. I am needing to uninstall the 2010 due to a configuration error (on my part). Why is it so hard to uninstall it. The only thing that was done so far was the PF being replicated. I stopped the replication and removed all the replicas as far as I know. I can't remove the PF because it tells me there still are replicas in place. I cannot find them. As for the Hub transport being uninstalled, I have to remove the routing group. Do I remove it from 2003 or 2010 and how. I'm new to Powerscripting. Please help. Is there a way to manually remove 2010 so I can reinstall it?