I never used winmx but heard it had an efficient leech filter as do some other programs on other networks. However, the way Gnutella is set up it's not so easy to incorporate.
If you wanted to strictly stop BS or another client from connecting to you, there is a way I believe but I'm not sure how this is done. I think it has something to do with preference settings. Others would know more about this. stief & et voilą would know the ins & outs about this. |