Per MS it's OK as long as they don't hold any FSMO roles.
We recommend that you locate critical server roles on domain controllers that are installed directly on physical hardware. Critical server roles include the following: * Global catalog servers * Domain Name System (DNS) servers * Operations master roles, also known as flexible single master operations (FSMO) http://support.microsoft.com/kb/888794 Dave Lum - Systems Engineer [EMAIL PROTECTED] - (971)-222-1025 "..remember that, in the past, those who foolishly sought power by riding the back of the tiger ended up inside" - JFK From: John Hornbuckle [mailto:[EMAIL PROTECTED] Sent: Thursday, July 17, 2008 7:15 AM To: NT System Admin Issues Subject: RE: My First 2008 Server I thought I had heard somewhere that it wasn't a best practice to run a DC in a VM. I had tried to get confirmation on that a while back, but didn't have much luck. I don't see why running a DC in a Hyper-V VM would be a problem, though-I never really got a good answer on that. John From: Jon Harris [mailto:[EMAIL PROTECTED] Sent: Thursday, July 17, 2008 8:57 AM To: NT System Admin Issues Subject: Re: My First 2008 Server So far that is all I have done. I had mine come in back in May but was told to leave it off until 3rd week of June. I will be doing my DC in Hyper-V which is very nice. Jon On Thu, Jul 17, 2008 at 8:52 AM, John Hornbuckle <[EMAIL PROTECTED]> wrote: Woohoo! My new server arrived yesterday, and it'll be my first 2008 server in a domain/forest that currently has all 2003 machines. I'll need to make it a DC, so I want to make sure I don't miss anything. Looking at a couple of TechNet articles, it looks like I need to run "adprep /forestprep" on the schema operations master and "adprep /domainprep /gpprep" on the infrastructure operations master server. Is that all? John Hornbuckle MIS Department Taylor County School District 318 North Clark Street Perry, FL 32347 www.taylor.k12.fl.us <http://www.taylor.k12.fl.us/> ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~ ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~