I'd like to provide temporary solution for people experiencing problems with .lnk/.exe/.com/.bat file associations in guest Windows (conflicts with Wine Helper, Unarchiver or other Mac OS X apps that can open .lnk/.exe/.com/.bat). In the attachment you will find fixwinexts.reg file inside the archive. 1. Extract it and copy into guest OS. 2. Run it (double-click on it). 3. Answer "Yes" on question "Do you want to ...". That's all, now .lnk/.exe/.com/.bat file associations must be fixed.