I'm seeing the same error in the same scenario: while my ErrHand program is running.

While we use Intellisense during development, we don't need or want to use it during run time.

According to VFP help (9.0 SP1), "You can disable all IntelliSense functionality by setting EditorOptions to the empty string (''). The default settings are 'LQKT'."

If we do something like this in the startup program of our app, would this be sufficient?

IF _vfp.StartMode > 0 && i.e., A development version of VFP wasn't 
&&                              started in an interactive session.

    _VFP.EditorOptions = ""  && disable all IntelliSense functionality

ENDIF && _vfp.StartMode > 0