1.This prodecure can only work normally in Windows xp, it will crashed if work in Win7.
2.If you enter right serinal number, it will popup a dialog, the content is "You Get it!".If you enter wrong serinal number, nothing will happen.
3.I used SMC skill in the prodecure.
4.I hope you can find and analysis the arithmetic, explode it may loss many fun.
5.It's easy, have fun with it!