An ultimate DOS Trick

This simple process will create a shortcut to enter the DOS. Further tweaking will tell a computer to startup in DOS mode and if your friend doesn't know DOS commands, he would be getting ready to call up an engineer. Just follow these simple steps:

1. Right click on the Desktop and select New>Shortcut.
2. The location  for the shortcut is "c:\windows\command.com".
3. Save it with any filename (preferably with some system type name so that no one messes with it).
4. Right-click on your newly created shortcut and select Properties.
5. In properties, go to the Program tab and click on Advanced.
6. Here, select the checkbox for "MS-Dos Mode" and unselect the checkbox for "Warn before entering Ms-Dos" and click OK.
7. Copy/Move this shortcut to the folder c:\windows\start menu\programs\startup\
8. Restart.

Now, the computer will always start in DOS-mode till the shortcut you just created exists in the startup folder as your shortcut is automatically executed on startup. You will be able to operate this computer in DOS-mode only.

In case you want to show some mercy later on, all you have to do is delete this shortcut through the DOS itself.