Thanks. I agree on the approach :) But - as a best practice of minimum elevated rights, I want to be restricted. Hence want to know for SP3 - do I've to do /PrepareLegacyExchangePermissions, /PrepareAD & /PrepareDomain? RegardsHarry

Considering Exchange 2003 & Exchange 2007 SP2 in the existing Organization & the intent to introduce Exchange 2007 SP3 servers on Windows 2008 R2. If along with /prepareschema, do I've to do /PrepareLegacyExchangePermissions, /PrepareAD & /PrepareDomain as well for SP3? RegardsHarry

The Release Notes don't say, so I would recommend that you do it. However, if you don't, Setup will check for it and will try to do it for you if it can based on your permissions. Therefore, if you don't do those steps, and the first time you try to update a server it succeeds, you can rest assured that all the prep steps were performed successfully.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi Make sure you read through the release notes http://technet.microsoft.com/en-us/library/ff728620.aspx Also check the issues for SP1 http://msexchangeteam.com/archive/2010/09/01/456094.aspxJonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Jonas, your confused. Its not Exch 2010 I'm talking about :)Harry

and /PrepareSchema after /PrepareLegacyExchangePermissions and before /PrepareAD.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."