Scenario: Primary DC 2003 Standard SP1 with two backup DC (2008r2 and 2012r2). We need to move everything to the 2008r2 before the 2003 crashes. I have tried using the “Schmmgmt.dll” instructions with no success: I was able to successfully register the “Schmmgmt.dll”. However, when I used the mmc to move the Schema Master Role nothing happened. I have never done this before so I am not sure what to do next. Any help would be greatly appreciated.