This article describes some idiosyncrasies, installation steps, and tools that are available in the new Remote Server Administrative Tools (RSAT) for Windows Vista.
If you are running Windows Vista as your “administrative desktop”, you will need to obtain RSAT to run the tools that administer Active Directory, network services, Group Policy, etc. The reason is that none of these tools come with Windows Vista out of the box.
Well, that is not 100% true. Microsoft made a decision to include Group Policy Management Console (GPMC) with Windows Vista. If this is the case, you might be wondering why you do not see the GPMC on your Windows Vista SP1 box now!? The reason is that the GPMC is removed when you install Windows Vista SP1. This was a decision that was made by the Group Policy team, in order to get all Vista computers to a common playing field so the NEW GPMC could be installed, which comes with RSAT.