[dogscoff]

Is it possible for a computer program (such as an AI routine) to have free will?

Quite probably. All that mucking about with electrons that goes on inside circuitry probably involves QM.

You should have a read of Rob Schrab's Scud: Dispoible Assassin. It's a great read and there is a really nice concept about all of human history being predetermined by God, but then a Robot (without sould and therefore unconstrained by Destiny) messes everything up.

Not the same thing at all, I know, but it made me think of it and it's a damned good comic.