Mprog 3.0a is a Windows programming utility used to modify the EEPROM contents of FTDI USB devices. It is used to customize various parameters of the chip, primarily the identification numbers. This provides a peripheral with a unique identity, as well as other settings required by the design. FTClean is a Windows device driver removal utility that will delete registry entries from the Windows registry using the VID and PID IDs supplied during its execution. This utility only operates on Windows XP and before machines as Windows Vista employs an integrated driver removal function.