public static string GetGroupFromAD(string group)
        {
            DirectorySearcher search = new DirectorySearcher();
            search.Filter = String.Format("(&(objectCategory=group)(cn={0}))", group);
            search.PropertiesToLoad.Add("distinguishedName");
            //SearchResultCollection results = search.FindAll();
            SearchResult result = search.FindOne();

            if (result == null)
            {
                throw new Exception("Could not find group in Active Direcroty");
            }
            else
            {
                try
                {

                    return (string)result.Properties["distinguishedName"][0];
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
        }

        public static string GetMembersOfGroup(string objectPath)
        {

            DirectoryEntry group = new DirectoryEntry("LDAP://" + objectPath);
            foreach (object dn in group.Properties["member"])
            {
                Console.WriteLine(dn);
            }

            return "";
        }