Joe, I tried to do this, got nowhere in about an hour. Recently, though, my project manager has been very generous and bought me an Icepic and a Rice16... and the Icepic software (version 1.5.38 available on Microchip's web site) contains a sample excel spreadsheet for controlling the Icepic - maybe this contains some answers...? I've not really used the Icepic or the Rice16 in anger yet, so I can't really comment on which is better. I will say that there's nothing intrinsically wrong with either, both seem to be perfectly capable professional development tools. A Picmaster with MPLAB is the best I've used, though, no question. - Andy. ************************************************************* Andrew David Senior Project Engineer - Software Ultronics Division Andy@Ultronics.co.uk Ultra Hydraulics Ltd. Anson Business Park Cheltenham Road East Staverton Glos. GL2 9QN Tel.: (01452) 858376 (Direct) Ultronics Fax.: (01452) 858377 *************************************************************