System Directoryservices C# by API

using System;
using System.DirectoryServices;
class MainClass 
{
   public static void Main()
   {
      DirectoryEntry de = new DirectoryEntry("LDAP://192.168.1.100/dc=ispnet1, dc=net");
      string ldappath = de.Path;
      Console.WriteLine("The LDAP path is: {0}", ldappath);
      de.Close();
   }
}