https://bugs.winehq.org/show_bug.cgi?id=26768
--- Comment #9 from Sebastian Lackner sebastian@fds-team.de --- I've started working on this (see staged patchset), but at the time of writing, there are still a couple of known problems left, for example with marshalling of BYVAL structs. Nevertheless, depending on what those apps actually need, there is a small chance that it still works, so feel free to try it out.