https://bugs.winehq.org/show_bug.cgi?id=37513
--- Comment #5 from Austin English austinenglish@gmail.com --- Hi Peter,
I was asking for you to try 'winetricks ie7' to install native IE (which includes native mshtml), then retry TaxAct. That may workaround the issue for you, and help us to narrow down where the problem is in wine.