I have a RM CC4 Server 2003R2 network. I was told by RM this time last year that i cannot add a vanilla Windows server 2008R2 to my network which at the time wasnt a major issue. I now really need to add this server so i can install exchange 2013. Can anyone tell me is this possible without all the RM components on my DC's throwing a fit? I have CC4 UPD110 installed which i believe is the update which allows for 20082.