I have a customer that has a single Win2003 DC running. At one point we added another DC and put in a 2008 Server. The schema on the 2003DC was upgraded to V47 with Adprep then the 2008 server setup as the 2nd DC. There was an issue with another application on this 2008 box and we had to dcpromo it and remove it as a DC.
I would like to get a second DC running in their environment but the only server available is another Win 2003. Can I dcpromo this 2003 server or because the Schema has been upgraded will this no longer work? I have never had run into this situation and can't find much on Google on this scenario
