I am planning to demote my Windows Server 2008 Domain Controller (I have another primary one) and want to know what/if anything I should prepare for and expect to have trouble with? I am going to install Microsoft's Forefront server on this machine, which cannot be done if it is a DC. So, I'm planning to demote it. Although, given past history, I am expecting some hiccups and bumps, but I don't want anything too serious that would cause the users to be deleted (even though this is not the only DC). Does anyone have an experience you would share to help me avoid a meltdown?