https://bugs.winehq.org/show_bug.cgi?id=47669
--- Comment #36 from ryan@rnrcarpet.com --- Yes possibly the last piece to the puzzle:
winetricks corefonts
When I did it yesterday it failed to install so that prefix must have been broken from a lot of testing. Getting corefonts on there gets what might be the last UI elements working.
Pre-existing company file now opens and QB shows the full company UI correctly with no crash.
The only thing left now is to test QB itself with a company open.
Thanks Louis. That msxml6 tip was exactly what was needed.