The driver is a zipped dll that you must put into the mplab directory replacing the old dll. I just tried it and it seems to work. At least I could read the program and calibration data from a PIC14000 which I could never do before under NT4. Roger Roger H. Anderson Bioengineering The University of Iowa 54 Medical Research Facility Iowa City, IA 52242-1183 (319) 335-8644