www.mikescher.com/www/statics/programs/LanControl_description.md

LAN Control is a tool to execute operations on another computer over a LAN connection.
All you have to do is execute the server.exe on the remote computer and the client.exe on yours. After that you can do things like lock the PC, get executed programs, kill processes etc.

I strongely advice to do this only one your own computer and not control other pc's. Except - you know - you have good reasons :).