tutorial virus I

Lets do some programming!!
How to create a harmfless virus to mess with your friend's computer!!
1)open notepad and type the folowing code:-
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@echo off
shutdown -r -t 100 -c "rishabh"
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Save it as any name with a .bat extension like **game.bat**
you can change ""rishabh"" with what ever message you want,You can also change "100"(in secs) with whatever time you want to restart.
Send this ""game.bat"" to your friends using a pendrive or by uploadig it to rapidshare/hotfile service.

LOGIC:-
.bat- Files having these extensions are known as batch files containg commands to be executed by command interpreter.
@echo off - this command turn off the command you put in your batch file.
-r - this parameter restarts the pc.You can also use "-s" (without quotes) to shutdown the pc.
-t :- this parameter specifies time in seconds.
-c :- this parameter is used to specify a message in the shutdown box.

Note:- If by mistake you double clicked on the shutdown file, immediately type "shutdown -a" in run command.This virus will not harm your computer ,will just turnoff/restart your pc.