Second, Administrators block cmd.exe so you can't do stuff like this.(Easy to pass though. They already have a bunch of Instructables on how.)
Also, I dont know if this is considered hacking or not, so only do it to people who wouldn't care.
Now that I am done being Mr. Strict, the boring old normal teacher, lets get started!
Step 1: Steal the IP adress!
Copy the IP down on a piece of paper.