IIS Manager - applocation pool restart C# code

using System;
using System.Collections.Generic;
using System.Text;
using System.DirectoryServices;

namespace RecycleApplicationPool
{
    class Program
    {

        static void Main(string[] args)
        {
            string appPoolName = "DefaultAppPool";
            string machineName = "LOCALHOST";
            if (args.Length > 0)
                appPoolName = args[0];
            if (args.Length > 1)
                machineName = args[1];

            string error = null;

            DirectoryEntry root = null;
            try
            {
                Console.WriteLine("Restarting Application Pool " + appPoolName + " on " + machineName + "...");
                root = new DirectoryEntry("IIS://" + machineName + "/W3SVC/AppPools/" +appPoolName);
                Console.WriteLine(root.InvokeGet("Name"));
                root.Invoke("Recycle");                
                Console.WriteLine("Application Pool recycling complete...");

            }
            catch(Exception ex)
            {
                error = "Error: Unable to access AppPool: " + ex.Message;                
            }

            
            if ( !string.IsNullOrEmpty(error) )
            {
                Console.WriteLine(error);
                return;
            }
        }
    }
}

http://codepaste.net/5afgf6 

Refer : http://weblog.west-wind.com/posts/2012/Oct/02/A-tiny-Utility-to-recycle-an-IIS-Application-Pool