Preventing execution of new modules?

Hello. #C++ failed me.
How would I got about preventing execution of code in new modules (injected DLLs, etc.)?

Thanks.

>>8
You make me sad :(

So I'll have to run CRC-check or hmm..
To list all modules and if unknown module detected, exitprocess.. could work for my purpose.

Can I do it? Yes I can! =)