They probably repacked the CAB's and used a good compression method (instead of nero's version of compression, None). Edit: Just compressed the cabs, Haven't compressed the dll,exe's in the cabs though, got a size of 78mb's (from 200mb's to 78). Edit #2: Just downloaded it, Its such a small size because its been repacked. I could make a version like that, but it wouldn't be customizable. You get what you get. If you want something like that, just post.