Note that this is an older driver for the Apple Bluetooth from 2007. This is only if you wish to rollback your driver to a much older one. See the Apple website for a more up-to-date Bluetooth driver. If you are having problems with Bluetooth then rolling back does work at times.
Note that this is Driver Version: 188.8.131.52 and should work on the following operating systems: Windows 10 32 bit, Windows 8.1 32bit, Windows 7 32bit, Windows Vista 32bit, Windows XP.