Here is a quick tip - If you want to find out details on a user account on windows inside a particular domain use the following command on a DOS prompt

net user username /domain

where the username is the username of the account you want more information on. You can get a lot of information with this simple command. Some of the things you can find are -

Full Name
Account information - if active, if expires
Password - last set, expiry date etc
last logon date and time
group memberships