Hi Richard - 7zip is the standard, some claim; perhaps your effort is not wasted. Mid-90s, I was really taken with PICs. I've since recovered. Buggy silicon & crappy documentation take the fun out of it, unless you've got a FAE on speed-dial. I defected to AVR a few years ago - Still trying to decide if that was a good move... :) Jack --=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 .