is there a way to get an MS Windows Server (2008R2) as an ADC into a DSfW

It should use the AD 2008! Each time I try this MMC say that the existing
Domain seems to be an AD 2003?


It were an ugly trick to wrote in some papers that DSfW supports MS
Server 2008R2, but hide the part that this is only possible if the actual
Win-Server uses the old MS AD ...