Source: GroupWise Message Transfer Agent for Windows.
Explanation: The MTA cannot start because the agent engine (gwenv1a.exe) is not compatible with the MTA itself (gwmta.exe).
Possible Cause: Some agent files have been updated but the update is not complete.
Action: When updating the agents, make sure all agent files are installed. For a complete list, see "Agent Installation Directories" in GroupWise 6.5 Troubleshooting 3: Message Flow and Directory Structure.