No, it doesn't work.
I already have a code for Word objects, and I hide Word in that code. It's not visible during file preparation (I'm combining several documents into one, replacing some values with some data from a database etc), but during
objFaxDocument.ConnectedSubmit(objFaxServer) execution Word appears. It doesn't depend on when I close Word object - before or after ConnectedSubmit.

Thank you
Vlad