Error Installing Exchange 2007 with Domain Controllers Windows Server 2008 R2

[ERROR] Cannot find at least one domain controller running Windows Server 2003 Service Pack 1 or later in domain 'DC=DCName,DC=com,DC=DCName'. This could be the result of moving domain controller objects in Active Directory. Check that at least one domain controller running Windows Server 2003 Service Pack 1 or later is located in the 'Domain Controllers' organizational unit (OU) and rerun setup.

It happen when you are installing or upgrading Exchange 2007 in an Active Directory that has only Windows Server 2008 R2 Domain Controllers or yours Windows Server 2003 domain controllers that are not updated to at least Windows Server 2003 SP1.

Fix:
Download the updated ExBPA.PreReqs.xml and ExBPA.Readiness.xml, then replace this files in "Setup\ServerRoles\Common\".
http://www.microsoft.com/products/servers/exchange/code/ExBPA/Exchange2007/12.2/en/ExBPA.PreReqs.Xml
http://www.microsoft.com/products/servers/exchange/code/ExBPA/Exchange2007/12.2/en/ExBPA.Readiness.Xml

Change "en"=English in the link for your language:
it=Italian
ja=Japanese
es=Spanish
de=Geman
fr=French
ko=Korean
pt=Portuguese
ru=Russian