I just downloaded mplab309.exe from mchipbbs.microchip.com from the int-rel directory. I tried to execute it under win95 by double-clicking on it in Explorer. It came up with: 'Run this file using File or Program Manager' Making sure that windows was detectable under a MSDOS prompt did not help and neither did using the Run.. command from the start menu. Anybody got any ideas? Cheers. J.W. ----------------------------------------------------------------- Johnnie Walker MSc Digital Systems Engineering Heriot-Watt University email: ceejbcw@cee.hw.ac.uk ceejbw@pp.hw.ac.uk www: http://www.cee.hw.ac.uk/~ceejbcw tel: (0131) 343 2864 -----------------------------------------------------------------