I’m unable to locate a working plug-in/snap-in for Active Directory Users and Computers that works on Windows 7. Fortunately, there’s a workaround that allows administration of ADUC in Windows 7 with a little modification. First, you’ll need to download and install RSAT for Windows 7. It’s found here. You’ll need this before you can do anything else. Once this is installed, on your Windows 7 box, open Programs and Features and click the Turn Windows Features On or Off option….