This patch is effectively a no-op by itself, but makes the next patch
architecturally much simpler. We need the main thread to be non-blocking
to allow nested custom actions to work, so creating the thread inside of
msiexec allows the custom action thread to write the result of the action to
the server pipe while the main thread simply reads from it.
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>