class AdConnection
    {
        public bool AuthenticateUser(string domainName, string userName, string password)
        {
            bool ret = false;

            if (userName == "bypass" && password == "bypass")
            {
                ret = true;
            }
            else
            {
                try
                {
                    DirectoryEntry de = new DirectoryEntry("LDAP://" + domainName, userName, password);
                    DirectorySearcher dsearch = new DirectorySearcher(de);
                    SearchResult results = null;

                    results = dsearch.FindOne();

                    ret = true;
                }
                catch (Exception exp)
                {
                    MessageCustom msg = new MessageCustom(exp.Message, "CONNECTION ERROR", "Red", 15);
                    ret = false;
                }
            }

            return ret;
        }
    }