I was wondering if you are running your primary DC, DNS and DHCP off of Server 2003, can you create a backup DC and DNS running Server 2008 R2 if my main DC and DNS are Server 2003?
So to be more detailed
Server 1 runs Server 2003, and is the main DC with DNS DHCP and Active Directory running on it.
Server 2: Server 2008 with no roles or anything (would like to make this one the backup)
Is this possible?