> I wonder if you can get the hex code generated by Parallax and convert > it back to source using HexPic (for example). Yes you can. I used this to test a microchip to parallax source code converter. The disadvantage of going back from a hex file is that you have no symbolic information or comments. You are probably better off using an editor with a good search and replace. Steve. ====================================================== Steve Baldwin Electronic Product Design TLA Microsystems Ltd Microcontroller Specialists PO Box 15-680, New Lynn http://www.tla.co.nz Auckland, New Zealand ph +64 9 820-2221 email: steveb@tla.co.nz fax +64 9 820-1929 ======================================================