Calendar Server data format is modeled after RFC 2445, Internet Calendaring and Scheduling Core Object Specification (iCalendar). Calendar Server supports the following formats:
XML (.xml) — The interface to Communications Express.
iCalendar (.ical) — The default format.
You can use CSAPI to develop a translator DLL or shared library for the WCAP protocol. For information about WCAP and CSAPI, see the Sun Java System Calendar Server 6 2005Q4 Developer’s Guide.