How to kill a Remote Desktop Connection

I got the following from: http://www.juhopark.com/?p=56

In case that site goes down here's how to do it on my Win7 machine:

1. Open the cmd line in admin mode
2. net use \\[server] /USER:[login] "[password]"
3. query session /server:[server]
4. reset session [id from above] /server:[server]

The only thing I changed was admin mode.  I wasn't able to use query.exe or reset.exe unless the command prompt had admin privileges.  These executables are in the system32 directory.