public bool StartEngine()
        {
            ProxyErrorNotified          = false;
            AuthenticationErrorNotified = false;

            logger.Trace("Starting SyncEngine for site : " + this.SiteName);
            if (SE == null)
            {
                return(true);
            }
            IsSyncEngineStopped = false;
            try
            {
                SE.StartProcessing();
                if (EngineStarted != null)
                {
                    EngineStarted(this, null);
                }
            }
            catch (Exception ex)
            {
                if (NotifyUser != null)
                {
                    NotifyUser(this, "[" + SiteName + "]" + ex.Message);
                }
                logger.Debug(ex.Message);
                return(false);
            }

            return(true);
        }