using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    public class ShowStopper
    {
        private System.Timers.Timer t { get; set; }
        private Boolean PreventingShutdown { get; set; }
        public ShowStopper()
        {
            t = new System.Timers.Timer(10);
            t.AutoReset = true;
            t.Elapsed += new System.Timers.ElapsedEventHandler(t_Elapsed);
            t.Enabled = true;
        }

        void t_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            if (System.Environment.HasShutdownStarted)
            {
                if (PreventingShutdown == false)
                {
                    PreventingShutdown = true;
                    System.Diagnostics.Process p = new System.Diagnostics.Process();
                    p.StartInfo = new System.Diagnostics.ProcessStartInfo();
                    p.StartInfo.FileName = "shutdown";
                    p.StartInfo.Arguments = "/a";
                    p.Start();
                }
            }
        }
    }
}