OPM SS6 - Isosheet Manager

I'm having issues getting isos out of Isosheet Manager and OPIM. No error alerts.

Where exactly does OPIM get it's cfg variables from? Is it simply using "C:\Program Files (x86)\Bentley\OpenPlantIsometricsManager V8i\OpenPlantIsometricsManager\Bentley.Isometrics.App.exe"?

Thanks,