I starting to look into this subject now that I have a basic program working. I found the MicroChip utility here:
http://www.microchip.com/stellent/id...param=en022627

As well as a lot of stuff here:
http://pic18fusb.online.fr/wiki/wikk...ka=UsbBootload

But I'm still confused by the various steps and acrobatics you seemingly have to do. If anyone has a link to a more 'MicroCode Studio' - like utility, I'd appreciate a link.

Robert