Joe McCauley wrote: >Your opinion is quite valid, but even hardware dongles don't withstand the >determined hacker........... > >Joe > > of course, this depends on how the dongle is implemented. Most dongle-based systems are badly implemented. The properly implemented dongle systems (for instance the leich videoguard system is such a system, even if it does not protect software, but video programmings) perform most of the protection procedure through the decryption of data by the dongle itself (keys are stored inside). properly done, this is virtually uncrackable. Amaury -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.