how do I create polymorphic code in c++?

[helios]

http://en.wikipedia.org/wiki/Polymorphic_code

EDIT: Actually, what seems to be being discussed here is metamorphic code.
http://en.wikipedia.org/wiki/Metamorphic_code

[blackcoder41]

@helios
thanks for your reply I'll read on it later. (4:50 AM here and I haven't sleep yet)