For all those doing the "copy my installer-folder" real-quick trick for Gamersgate's games before your game installer's EXE gets destroyed...
...This is ALSO valid for games you download directly from UPlay & GameFly, as well.

With those two - you'll want to make sure AFTER you download the game, that you copy your entire folder elsewhere - with the installer EXE file intact, of course.
That's before you click INSTALL in UPlay's or GameFly's browser, that you backed your stuff up elsewhere; OR that you just close the browser program and then decide to run the EXE outside of the game-program.