https://bugs.winehq.org/show_bug.cgi?id=18070
--- Comment #134 from Zebediah Figura z.figura12@gmail.com --- (In reply to Dmitry Timoshkov from comment #133)
Does this help? https://www.winehq.org/pipermail/wine-cvs/2007-January/029786.html https://msdn.microsoft.com/en-us/library/windows/desktop/aa369432(v=vs.85). aspx
Unfortunately, no. It seems pretty clear that IInstaller & co. aren't the interfaces to the server, since they can still be created and used while the service is disabled. Rather, I suspect, the interface labeled IMsiServer (and probably also the unlabeled 000C1094) are the interfaces, and these are not documented either as coclass or IDispatch.