Hi,I can't install Exch 2010 or 2007 as I'm getting below errors: The schema master is not running Windows Server 2003 Service Pack 1 or later. Language Pack Checks ......................... FAILED Hub Transport Role Checks ......................... 100% The schema master is not running Windows Server 2003 Service Pack 1 or later. Client Access Role Checks ......................... FAILED The schema master is not running Windows Server 2003 Service Pack 1 or later. Mailbox Role Checks ......................... FAILED The schema master is not running Windows Server 2003 Service Pack 1 or later.My domain cotrollers are Widnows Server 2003 R2 SP2 Polish.I checked communication between Windows 2008 for exchange and DCs and I can't find any reason why these errors appear.any advice?thanks in advance!

Most likely your Polish version of Windows 2003 R2 is not recognized properly.You should post your question in the Exchange 2010 forum.http://social.technet.microsoft.com/Forums/en-US/exchange2010/threadsMCTS: Messaging | MCSE: S+M | Small Business Specialist

Hi..Polish is not listed in the Supported Language please refer http://technet.microsoft.com/en-us/library/dd298152.aspx Thanks Hari

Hi,I know that for Exchange I need English Windows Server 2008 x64 and I have it.I have also 2 domain cotrollers Windows 2003 R2 polish in our environment and I don't want to have any additional only for Exchange insatllation.Is there any other way to install Exchange in polish environment?BRPiotr

Hi,Please use the ADSI Edit tool to expand Domain, expand DC=Domain,DC=com, and then expand OU=Domain Controllers, right click the appropriate domain controller, and then click Properties, find the OperatingSystemServicePack, edit it and type Service Pack 2, click OK.After that, please check this issue.ThanksAllen