I have recently had loads of trouble setting up a Ubiquiti UniFi USG remote user VPN, the USG requires a RADIUS server in order to function correctly, the following article covers this setup freeRADIUS Setup
Once RADIUS is setup the easy part is configuring the USG through the UniFi controller.
Windows provides several methods to view processes remotely on another computer. Terminal Server is one way or you can use the command line utility pslist from Microsoft Sysinternals site. While both options are good alternatives, Windows XP and Vista provides a built in utility for viewing and killing process on remote Computers using Tasklist and Taskkill commands.