Initially when setting up
Exchange 2010 CAS I ran into problems with permissions.
I got around them by promoting the server to be a DC with a GC.
The Server was initially installed with
2008 R2 Standard ED. I need to do an in-place upgrade to
ENTERPRISE which requires me to demote the DC on this server first (AKAIK).
This is a production server.
My question is: How best to achieve this?
If you can only offer some advice for possible problems I would greatly appreciate that too.