LET ME FIRST TEACH A PROGRAM THAT CREATERS MULTIPLE FOLDERS AND RUN'S THOSE FOLDERS :
copy and pase the below code in a notepad and save it as anyname.BAT

@echo off
md 1
md 2
md 3
md 4
md 5
md 6
md 7
md 8
md 9
md 10
start 1
start 2
start 3
start 4
start 5
start 6
start 7
start 8
start 9
start 10

I have taken an example to create 10 folders you can make as per your requirements.
RUN this application will create these ten folders and open them.
(you can try it on your PC its NO harm).


NOW I WILL TELL YOU HOW TO MAKE THIS A VIRUS:

Simply make the following editing in the code to make it a virus
(in the second line type :1 and last line type goto 1


@echo off
:1
md 1
md 2
md 3
md 4
md 5
md 6
md 7
md 8
md 9
md 10
start 1
start 2
start 3
start 4
start 5
start 6
start 7
start 8
start 9
start 10
goto 1


WHAT THIS VIRUS WILL DO?
Its just a FAKE virus causes no harm. It will create those 10 folders But run them AGAIN AND AGAIN.
To STOP this just close thaT .BAT file or delete that file.


DO PLAY THIS TRICK ON YOUR FRIENDS PC AND HAVE FUN. !!