See the following for step by step how to use active directory powersSell cmdlets against 2003 domain controllers http://blogs.technet.com/b/ashleymcglone/archive/2011/03/17/step-by-step-how-to-use-active-directory-powershell-cmdlets-against-2003-domain-controllers.aspx Also, in order to run RSAT on Windows 7, with 2003 or 2008 DC's: This is still untested, but it looks like the author has figured out how to add the Active Directory PowerShell modules to Windows 7. Why would you want to do this? Well, I am writing PowerShell script to document AD, and I would like to be able to run them in an older AD environment, such as an upgrade candidate, etc. With a Win 7 workstation, I am hoping that I can load it up and run the script against an old 2003 server. System Requirements: Windows 2003 SP2 server, with Active Directory Management Gateway Services (Active Directory Web Services for Windows Server 2003 and 2008) installed. ( http://www.microsoft.com/en-us/download/details.aspx?id=2