List and Logoff RDP Users Remotely

To get a list of the Remote Sessions in the command window (Get the session Id of user to kick out): 
 qwinsta /server:SERVERIP 
 To disconnect the remote session: 
 rwinsta /server:SERVERIP SESSIONID 
 From  http://superuser.com/questions/62498/kicking-logging-out-remote-windows-users