Currently we have a windows 2003 r2 server which is our domain controller.
We want to move to Win Server 2008 R2, and this will be on a new machine.
Is it possible to introduce the windows 2008R2 machine into the current
domain, and configure it as a backup domain contoller, the promote it, which
would de-mote the 2003 R2, so that we can then just turn off the 2003 R2
server, and all the domain users and other stuff would be the same in the
new 2008 domain, as the old 2003 domain ???