msi: Catch all exceptions in the custom DLL procedure.
Wine-Bug: http://bugs.winehq.org/show_bug.cgi?id=50583
Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
msi: Return ERROR_INSTALL_FAILURE on an exception in the custom action.
With help from Hans Leidekker.
Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>