Darrel, okay, I see that you are the only one who replied to me on this post, but I was originally referred to a different discussion group by PBP Help, and some people over there tried to give some advice too. As for your first "Duh", yes thank you, I knew how to do that, but I couldn't find out where. Your "Double-Duh" response answered that question for me. Thank you. If you read my original question, that is what I was looking for. I just needed to know where to find the libraries. As for my new routine, it's nothing special, and the reason I didn't post it is that anything I write is company-confidential, no matter how small or simple. As for "non-deterministic", it basically means that the code has the ability to do different things on different runs. For example, if I used a retry scheme for the EEPROM, then on one run, it may be able to write the EEPROM on the first try, but on the next run, it may not do it until the second try. Well, then the second run would be skewed by about 4mS longer than the first. This makes digital filters and controls very hard to manage.

Anyway, you have helped me. In the future, if I need to hack a PBP library, now I know where they hide them. And, as Bruce pointed out, I'm probably better off leaving them alone, since an upgrade to PBP would wipe out my changes, in case I forget what I've done.