protected void ScheduleImports()
        {
            lock (_syncObj)
            {
                ITaskScheduler   scheduler       = ServiceRegistration.Get <ITaskScheduler>();
                ISettingsManager settingsManager = ServiceRegistration.Get <ISettingsManager>();
                _importerTaskId = _settings.Settings.ImporterScheduleId;

                // Allow removal of existing import tasks
                if (!_settings.Settings.EnableAutoRefresh)
                {
                    if (_importerTaskId != Guid.Empty)
                    {
                        scheduler.RemoveTask(_importerTaskId);
                        _importerTaskId = _settings.Settings.ImporterScheduleId = Guid.Empty;
                        _ignoreChange   = true; // Do not react on next setting's change message!
                        settingsManager.Save(_settings.Settings);
                    }
                    return;
                }

                Schedule schedule = new Schedule
                {
                    Hour   = (int)_settings.Settings.ImporterStartTime,
                    Minute = (int)((_settings.Settings.ImporterStartTime - (int)_settings.Settings.ImporterStartTime) * 60),
                    Day    = -1,
                    Type   = ScheduleType.TimeBased
                };

                Task importTask = new Task("ImporterWorker", schedule, Occurrence.Repeat, DateTime.MaxValue, true, true);
                if (_importerTaskId == Guid.Empty)
                {
                    _importerTaskId = scheduler.AddTask(importTask);
                    _settings.Settings.ImporterScheduleId = _importerTaskId;
                    _ignoreChange = true; // Do not react on next setting's change message!
                    settingsManager.Save(_settings.Settings);
                }
                else
                {
                    scheduler.UpdateTask(_importerTaskId, importTask);
                }
            }
        }