ROMzap - http://piclist.com/images/com/bubble...mo/ROMzap.html

Looks pretty advanced for what I need - it seems to use UART, although it does support the 16F872 which doesn't have a UART.

I am downloading it now and will dig in to the Source files (if they are in the ZIP) to see how customisable it will be.

So has anyone ever written a bootloader in PBP??

bill.