hey.. i'm looking for something for XP that will block or be invisible to packet sniffers on my LAN.. i tried antisniff from a link i found on the grc site, but it said it was only for 95/98/NT, and when i ran it, it wouldn't work (it wouldn't detect my network card and so on). i'm worried that some ppl on my LAN may be voyeurs; wanting to know what i'm doing online for no good reason and perhaps checking out my IM sessions. i wanna plug this hole! any suggestions/programs? thx!