Hi Everyone, Thank you for your help in advance. I would like to ask: Our Current AD is still running on Windows 2003 Standard. We also have several sites running on both fiber and T1. But we do not have any sub-domains. Now, I am about to create a new site (before the upgrade), and try to put the first DC in it, which will be running Windows 2008 R2 standard on. May anyone help to provide info on which article or instructions I should follow based on our situation? I know there are some prep tools need to run. Also, any things more I need to concern about? Or any advise. Besides, we have our Exchange 2007 (do not know the sp yet). Would that affect the structure in the Exchange? We are using the Exchange Unity for our Call Manager voice mail. Hope you can help. Thank you very much. Takami Chiro

I've used this Microsoft paper: http://www.microsoft.com/downloads/en/details.aspx?displaylang=en&FamilyID=fa629de2-f4dd-47ac-8d80-3db46b2877a2 Also, this paper can help: http://www.pbbergs.com/windows/articles/Upgrading_Active_Directory_from_2003_to_2008.htm Richard MuellerMVP ADSI

Hello, please see the following article about upgrading to the enw OS: http://msmvps.com/blogs/mweber/archive/2010/02/10/upgrading-an-active-directory-domain-from-windows-server-2003-to-windows-server-2008-or-windows-server-2008-r2.aspx For Exchange start with: http://msmvps.com/blogs/mweber/archive/2010/05/23/exchange-server-and-it-s-relationship-to-active-directory.aspxBest regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Thank you very much for your both answers. I will read thru these info and start to perform the upgrade in my test lab before on the production. Please bless me :) Happy Holidays to you all! Takami

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