Nothing wrong with running 2 p2p apps. But highly recommended not to run them at the same time. If you're dwnlding videos & with types like torrent where you need to upd as much as you dwnld, then you really are going to be splitting the bandwidth. Most p2p apps run on different ports - though Gnutella tend to be similar if not the same. I might get corrected there. lol

I don't know about the windows issues.