kill process tree(process group) on WIndows/C#

kill_ptree.cs

void KillProcessTree(System.Diagnostics.Process process)
{
  string taskkill = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System), "taskkill.exe");
  using (var procKiller = new System.Diagnostics.Process()) {
    procKiller.StartInfo.FileName = taskkill;
    procKiller.StartInfo.Arguments = string.Format("/PID {0} /T /F", process.Id);
    procKiller.StartInfo.CreateNoWindow = true;
    procKiller.StartInfo.UseShellExecute = false;
    procKiller.Start();
    procKiller.WaitForExit(1000);   // wait 1sec
  }
}

Useless. By doing it using windows's executables, you don't get full control over the output, etc. Sometimes, you want to know if the process that you executed the "termination" function on, died by the function, process, or it died by itself because other process children/thread died. Basically, you have a veery limited amount of control.