There are multiple ways of querying for a user’s information from Active Directory. If you are a fan of writing scripts, you can use PowerShell [AdsiSearcher] type accelerator. However, if you are more of a visual GUI person, you can use DSQuery tool that’s comes with Windows 7.
To run the tool, open CMD window, and type the following command:
This will bring up a GUI where you can search active directory for users by their username, email or full names.