There are some __DATE_ and __TIME__ macros used in example code. the compiler is C18, and I have searched C18 Library, C18 help and C18 getting started help. Where is this stuff documented. Are there other macros like these. I am using mplab. Cheers Justin -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist