Sun's Java System Calendar Server has a long history, drawing technology from
Sun Internet Calendar Server (SICS) and
Netscape Calendar Server (NCS). The software has undergone several name changes; in addition to the above, it has also been marketed as
iPlanet Calendar Server and
Sun ONE Calendar Server. The code base has been carried on throughout these name changes with only feature/packaging enhancements and bug fixes. Since 2003, the Calendar Server has been included as part of Sun's
Java Enterprise System, a collection of infrastructure software applications and tools. It is also available as part of the
Sun Java System Communications Suite, a smaller collection of messaging and collaboration services that includes
Sun Java System Messaging Server,
Sun Java System Instant Messaging Server, and
Sun Java System Communications Express. Supporting server software for the Calendar Server includes
Sun Java System Directory Server,
Sun Java System Access Manager, and
Sun Java System Web Server. The supporting software is included in the Communications Suite bundle with limited-use license rights. Calendar Express was the original web-based client interface for the Calendar Server. This
HTML client allowed Calendar owners to create appointments, invite others to meetings, and to subscribe to other calendars. The Calendar Express web-client was dropped from support starting with Sun Java System Calendar Server 6.3. This client functionality has been replaced by
Sun Java System Communications Express. The Calendar Server version 6.3 is supported on multiple
operating systems including Sun's
Solaris and
Red Hat Enterprise Linux.
HP-UX and
Microsoft Windows have since been dropped from support starting with version 6.3. ==References==