if the broadcast feature worked flawlessy i wouldnt have asked, as for hamchi, i dont even think windows have a commandline for it, much less a command line that is easy to use as to start a MG game with.
And even if i could, it would be far easier to just mark something ctrl-c tab to game, and ctrl-v
I often have problems with broadcasting issues on windows, not only MG, while the basic principle sounds smart and simple, its just not allways working, a dirrect ip connectin tho. ALLWAYS work, (provided there is actual connectivity)