Development Class C#

using System;
using System.Collections;
using System.IO;
class Sample
{
    public static void Main()
    {
        Environment.CurrentDirectory = Environment.GetEnvironmentVariable("windir");
        DirectoryInfo info = new DirectoryInfo(".");
        lock (info)
        {
            Console.WriteLine("Directory Info:   " + info.FullName);
        }
    }
}