Dear All, One of my customer is having 12 Locations connected to their Head Office (HO) through MPLS Link. I have configured Domain Controller at HO on MS-Windows 2008 Server. My Customer has 12 License Copy of MS-Windows 2003 for each location. If i configure Child domain controller on these 12 Locations,then is it possible to integrate all these 12 Child Domain Controllers with MOSS 2007 and Project Server 2007 for Single Sign On Purpose...? Your Help is highly appreciated. Thanks, ArjunArjun