how to Block and Allow any specific port using c#

RunShellCommand(
    "netsh.exe",
    String.Format("advfirewall firewall add rule name=\"{0}\" dir=in action=block protocol={1} localport={2} profile={3}",
    "My rule name",
    "TCP",
    4567, // Port
    "Private", // Can be Private, Domain, Public or Any
    out stdout,
    out stderr);

private int RunShellCommand(string command, string parms, out string stdout, out string stderr, bool waitForCompletion = true)
{
    ProcessStartInfo psi = new ProcessStartInfo(command);
    psi.RedirectStandardInput = true;
    psi.RedirectStandardOutput = true;
    psi.RedirectStandardError = true;
    psi.UseShellExecute = false;
    psi.WindowStyle = ProcessWindowStyle.Hidden;
    psi.CreateNoWindow = true;
    Process proc = Process.Start(psi);
    System.IO.StreamWriter sw = proc.StandardInput;
    System.IO.StreamReader sr = proc.StandardOutput;
    System.IO.StreamReader se = proc.StandardError;
    sw.WriteLine(parms);
    sw.Close();
    stdout = sr.ReadToEnd();
    stderr = se.ReadToEnd();
    if (waitForCompletion)
        proc.WaitForExit();
    return proc.ExitCode;
}