Check which processes are connected to the internet

It does not seem very simple. I have also never tried to do this but found some answers in SO .

It seems the simplest way is to call an external process and run the Windows utility to report this. It would look something like:

var process = new System.Diagnostics.Process { //se usar o using não precisa do namespace
    StartInfo = new ProcessStartInfo {
        StartInfo.FileName = "netstat.exe";
        StartInfo.Arguments = "-abnot";
        StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
        RedirectStandardOutput = true;
    }
}
process.Start();
while (!process.StandardOutput.EndOfStream) {
    var line = process.StandardOutput.ReadLine();
    // faz alguma coisa com o conteúdo de cada linha recebida do processo
}

I placed GitHub for future reference .

There is also the alternative of using P / Invoke and creating an API access with GetExtendedTcpTable() . But I do not know how to do it.

I found an answer in the SO that shows you how to do at least basic access (I do not know if that works for you). Yeah, it's not that simple.