What the problem really is is that the game itself refuses to even install. Do I have to install it before playing it with ScummVM?

I am trying to play the game 7th Guest using Scumm VM. I am using a laptop computer windows 7. I am using Scumm Vm version 1.1.1. I copied the files from the main game itself to another folder on my c drive and have directed ScummVM to that folder. However, ScummVM insists that there is no game on t...