I encountered this whilst using TImageEnMView.GetImageToStream, after I had added a Canon Raw file (CR2) to the ImageEnMView component.
Internally this calls "fImageEnIO.SaveToStream(stream, imageFormat)"
When image format is 20 (ioRAW), the SaveToStream method drops straight through to line 5609, where the "assigned(fpi.WriteFunction)" evaluates to false so the stream is not populatd. This results in fAborting := TRUE.
I have the ielib32.dll present (IELibAvailable = True).