There are a few programs out there that do things like that.
Although there is no way that I am aware of to kill a protected process. But having said that, I should make it clear that I never looked very deep into it to find out how it is done. So it might be possible, I don't know off hand.
After I get CleanMem 2.0 done i will see what I can do, but no promises on it as of yet

Shane