Is anyone familiar with how it works, or more specifically, how its use is detected?

context please

He wants to get into p2p networks that ban you if you limit your upload.

>>3
That's stupid. The p2p networks, I mean.

>>3
I've given up on limiting my uploads, instead opting for a policy of sharing files that few would want.

>>2 I'm still curious about the technical aspects of the software and what it does to traffic that makes it different from hitting your connection's hardware limit. I have done a little research into what happens to connections when they reach their limit. If I understand it correctly, the ACK packets required to maintain a download's connection and speed can't be sent out as fast when the upload stream is full of other data. Meanwhile your download has lots of room to receive ACK packets from the people you upload to. I still don't know how an artificial limit would work, or how it would look different.

if you're using bsd or linux you could just use altq to limit upload... you can also use it to prioritize outgoing ACK packets so your download speed stays fast even when you hit your connection's upload limit...
if whatever p2p program you're using is windows-only, there's wine, or you could set up a bsd or linux box as a firewall between your windows box and the internet (i'd recommend openbsd for this)...

Thanks for the tip, the prioritization sounds like a good solution for both sides of the filesharing equation. I'm still curious about the technical aspects of transfer limits on packet traffic. From what little I've been able to glean, Netlimiter practically announces itself to any program that bothers to look. Is it just a thin software proxy?