Josh Koffman wrote: >=20 > Thank you all for the replies! That's what I thought, so thank you for > verifying what I was guessing. I think the book (published last year) > just hasn't been able to keep up with the current rapid development of > both MPLABX and XC8. I sympathise with the author - it's been challenging to keep my tutorials reasonably up to date. But I note that even before I revised all my C lessons to work with XC8 instead of HI-TECH C, that HI-TECH C had an equivalent "#include " that included the appropriate processor heade= r in the same way. So even a few years ago, if using HTC (which morphed into XC8), there was n= o need to specifically reference processor headers. Regards, David www.gooligum.com.au --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .