Jon, Remember what adprep is doing, after some basic checks its main purpose is to extend the schema so that objects used by 2008 exist in the AD (its adding stuff, but shouldn't modify what you already have). That being said, we haven't made this step in production yet, but prep for W2K3 R2 had no effect whatsoever on our trusts.
Second on the exchange side, running adprep should not 'remove' any objects that are related to exchange so you should be just fine with that as well. The big deal issues that occur with running adprep is when you have custom schema extension from 3rd party vendors that may or may not conflict with the new objects Microsoft is trying to add. Good luck and let us know how it goes. -Troy From: Jon Harris [mailto:[EMAIL PROTECTED] Sent: Thursday, July 10, 2008 9:44 AM To: NT System Admin Issues Subject: Adding a 2008 DC to a 2003 domain I have been reading for 2 days now and still can't find two pieces of the puzzle. We have 2 existing trusts setup I have not found anything yet on what will happen to those trusts we I run adprep to get the domain ready for adding this DC. Second piece is we do not run Exchange here but we did have to install do the Exchange extensions to the domain. After I run adprep will I have to do the Exchange extensions again? I would prefer guidance on where to find these little nuggets and no there is no way for me to test this. To matters even more touchy this is being done on not only the production domain but on 2 trusts that has take at times months to get setup and stable. Thanks for any directions, Jon ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~
