Removed the following files:
1) ...Nimsoft\lib\NimAlarmHistory.ocx
2) ...Nimsoft\lib\NimAlarmList.ocx
Then downloaded and reinstalled the Infrastructure Manager and reset the IM config using Tools->Options to the NMS-Robot and the alarms were now appearing instead of throwing the OCX error when you switched to View-Alarm Window in the IM or double-clicked the 'rainbow' bar at the bottom of the IM window to refresh the alarm sub-console.k
keywords: ocx alarm console black error upon login not loading messages alarms NimOCX~1
CNimOcxContainerCtrl - SetOcx: Error creating NimAlarmList OCX