http://blogs.technet.com/jeffa36/archive/2007/10/31/windows-server-2008-password-policies.aspxIn Windows Server 2003 SP1 or R2 one of the major limitations was the ability to only have one password policy per domain.  Pain right?  The product team realized this was a major pain point for many customers, so they added some new passworden-AUCommunityServer 2.1 SP1 (Build: 61025.2)