Hi With the MPLAB3.3 upgrade they advice you to upgrade PICSTART PLUS FIRMWARE. >............. Updating PICSTART Plus Firmware: Required Equipment: 1. Currently operating Picstart Plus Programmer with MPLAB Software. 2. Erased PIC17C44 microcontroller. 4. PSF12000.HEX file. 3. Phillips head screwdriver. Procedure: >............. My vendor wants to know what speed 17C44 ?? Does anybody know please? Kind Regards CC