Hi all, I know the topic of C compilers is a knarly one for the PICLIST, but for those who are interested in C compilers, we are having really good success with HI TECH PICC. We have used it for the 16C74, 'C73A, and ‚76. The tech support is also "superior", maybe even "unbelieveable" James We have no connection with Hi-Tech nor with Microchip.