Hello! Sorry for my english ) I used ExchServ 2007 SP1 (one server with all roles), need to migrate to Exch 2010.  My domain has name "bti". Exch setup said that it should be FQDN.  I renamed it to "bti-chita.ru", But there was mistake in the manual (DNS primary zones _msdsc.newdomain.com + newdomain.com + allow secured dynamic updates.) must be "msdCS" that`s why the new dns zome created with mistake. and a have to create it with my arms. then a got the mistake: ____________________________ [PS] C:WindowsSystem32>Get-OwaVirtualDirectory Get-OwaVirtualDirectory : Unable to create Internet Information Services (IIS) directory entry. Error message is: Access is denied. . HResult = -2147024891. At line:1 char:23 + Get-OwaVirtualDirectory <<<< _____________________________________ CAS stopped working.Cause it looking for old CAS server name "communication.bti" while it actual name "communication.bti-chita.ru" Started to ugrade to SP2, setup stopped - trying to ugrade CAS role. the mistake is . HResult = -2147024891 Access denied. the server 'communication.bti' not found Tried to delete CAS role, got mistake _________________________________________ C:Program FilesMicrosoftExchange ServerBin>Setup.com /mode:uninstall /role:CA Welcome to Microsoft Exchange Server 2007 Unattended Setup Preparing Exchange Setup The following server roles will be removed Client Access Role Setup previously failed while performing the action "BuildToBuildUpgrade". You cannot resume setup by performing the action "Uninstall". Exchange Server setup encountered an error. _________________________________________ And now i don`t know what to do ( Can somebody help? P.S. maybe there is a way to FORCE delete the CAS role? Thank you. Eugene

Software/Hardware used:
Exchange 2007 SP1 + Win 2008 SP1 + Win2003 AD3