It should either eventually crash or show you some kind of success dialog. If it's still sitting there after more than a half hour, it's probably done and you can safely kill it.
Madness string 1955
You ever know anybody who's just too nice? Then you realize it's annoying because they remind you of what you're not, that you'll never be as good as they are. And then you think, why can't I? And before you know it, that naive idiot you laughed at has made you a better person.