lol=msgbox("You's been haxed, nub!",6,"Super-Hack")
You can change the words in quotes to whatever you want, this was just what I used.The first one is the content of the message box, the second is the headline of it.
Then save it as resource.vbs in an empty folder.(BUT: You must change the thing that says "Save as type" from .txt file to "All files")
Then copy and paste that a bunch of times.(10-15)
Then type in:
Save it as opener .bat and make sure it's not set to .txt file, it's on "All files".
If you do test it out, close anything, save it, all that stuff. This won't harm your computer, it just opens up that message box that says "You's been haxed, nub!" or whatever you changed it to-a ton of times.
If you want, you can put it on a flash drive and mess around with your friends by opening it on their computer, or put it in a .zip file and e-mail it to someone.