[Bug 42446] Native Instruments 'Native Access' 1.1.x fails to start, reports 'You cannot start Native Access from the mounted disk'

https://bugs.winehq.org/show_bug.cgi?id=42446

--- Comment #34 from Stan  ---
(In reply to Louis Lenders from comment #31)
> > changing
> >
> > c = strrchrW( volumenameW, '\' );
> >
> > to
> >
> > c = strrchrW( volumenameW, '/' );
> >
> > results in correct volumename being returned and Native Access then works
> > normally.
>
> Hi Stan, just checked but that single change breaks the tests in
> kernel32/tests so  I guess a fix is more complicated then this single change

Maybe some things are sending a backslash path to GetVolumePathNameW and some
things are sending a forward slash path to GetVolumePathNameW.

Anyway, something is wrong with the forward slashes and back slashes in regards
to GetVolumePathNameW