[Bug 36152] msi tests fail when run in parallel (make -j)

http://bugs.winehq.org/show_bug.cgi?id=36152

--- Comment #4 from Austin English  ---
(In reply to Hans Leidekker from comment #3)
> (In reply to Austin English from comment #2)
> > Retesting, it looks like I can reproduce it with make -j test, so it's a
> > parallel test issue.
>
> Right, that's because our test modules use the same installation directory
> under Program Files. Why do you run them in parallel?

I don't normally, it was a one off.