how can i get connection bandwidth used per process under windows os?

Question

i would like to know about software that can do this and if it is possible to be programmed under the .net framework. please dont post irrelevant software! thank you

Answer 1

If you want to program it, you'll have to sniff network traffic, it might be done via WinPCap driver for example.

If you want a working program, you may take any sniffer like free SmartSniff.

Answer 2

I don't think that network information is stored by process, but only for entire system:

// using System.Net.NetworkInformation;
foreach (var network in NetworkInterface.GetAllNetworkInterfaces())
{
    IPv4InterfaceStatistics stats = network.GetIPv4Statistics();
    Console.WriteLine("In={0}, Out={1}", stats.BytesReceived, stats.BytesSent);
}