Lewis Geer wrote, in part: Can you explicate a little further? What was wrong in XAPIA that caused it not to be widely adopted? What was changed to fix this? How is vcalendar internet centered? <FRD>The XAPIA CSA was accepted by four major calendar vendors. It is also imbedded in every COSE/CDE UN*X system that ships today.</FRD> - - Frank