Oh yeah, that's a pretty good point. There's no GUI involved, though... but another good example is Internet Explorer for UNIX, which used a third-party WINE-li

Oh yeah, that's a pretty good point. There's no GUI involved, though... but another good example is Internet Explorer for UNIX, which used a third-party WINE-like product from the mid-'90s. https://en.m.wikipedia.org/wiki/Internet_Explorer_for_UNIX https://en.m.wikipedia.org/wiki/Internet_Explorer_for_UNIX But even then, that was with source access to IE. I definitely believe MS has the skills to make a binary-level implementation of Win32 on Linux happen. I just don't think it will be easy.