freeware

It seems there is a freeware version of vagcom available. Is this a autherised release from the VAG com makers? Also what features do you get with the freeware version?

I have been reading all posts on this topic but cant quite work out where you get this from-is it when you buy a cable or do you down load from somewhere? If Ebay cable are crap then whats the best place to get a proper one from? Some one should write an instruction book for this methinks.