Cause: MSComm.ocx did not install properly or the date of the file is incorrect. This occur when SMS Engine — Enterprise Edition has been reinstalled a few times on the same Windows machine.
- uninstall SMS Engine — Enterprise Edition
- if necessary, unregister MSCOMM.ocx and delete it
- then install SMS Engine — Enterprise Edition
- unregister the “MSComm.ocx” and delete it
- copy the new MSComm.ocx and manually register it