Open Door With Modem

OpenDoor.cs

using System;
using System.Diagnostics;
using System.Threading;

namespace Door
{
    public class OpenDoor
    {
        public static void Open()
        {
            ProcessStartInfo startinfo = new ProcessStartInfo
            {
                FileName = @"C:\Program Files\PuTTY\plink.exe",
                Arguments = "-load MODEM"
            };
            Process process = new Process { StartInfo = startinfo };
            process.StartInfo.UseShellExecute = false;
            process.StartInfo.RedirectStandardInput = true;
            process.StartInfo.CreateNoWindow = true;
            process.Start();
            process.StandardInput.WriteLine("atz");
            Thread.Sleep(2000);
            process.StandardInput.WriteLine("ATX3DT##11");
            Thread.Sleep(3000);
            process.StandardInput.WriteLine("atz");
            try
            {
                Process[] proc = Process.GetProcessesByName("plink");
                proc[0].Kill();
                System.Console.WriteLine("Done.");
            }
            catch (Exception e)
            {
                System.Console.WriteLine(e);
            }
        }
    }
}