Parameter Handles

I would like to know why parameter handles do not leak?!
Do blizzard clean them up, do they use globals and overwrite, why don't they leak?

they do not leak because warcraft engine work in this way.

Yes, but how does it work exactly?

there is no source code, nobody know how it works.

Hmm, thats a shame.

They don't leak because Blizzard didn't comment out the code cleaning them up.

Haha, that's a nice post. I kinda like it.