Harald Scan is a Bluetooth discovery scanner. It determines Major and Minor device classes according to the Bluetooth SIG specification and attempts to resolve a device's MAC address.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
MACLIST now contains 199 MAC addresses. A serious bug that would cause a crash on non-ASCII characters was fixed. The write to file option now only writes if new devices are found.