The installation of Calendar Server 6.3 has significantly changed from earlier Calendar Server releases. You must use the Communications Suite installer to install Calendar Server 6.3 software. Do not use the Java Enterprise System installer. However, you may need to use the Java Enterprise System Installer to install other server products.
For more information about installing Calendar Server 6.3, see .Sun Java Communications Suite 5 Installation Guide
If you want to upgrade from an earlier version of Calendar Server, the upgrade process is described in the Sun Java Communications Suite 5 Upgrade Guide.
For information about migrating your calendar databases and LDAP database from older versions of Calendar Server to version 6.3, refer to the information found in Chapter 3, Database Migration Utilities for Calendar Server 6.3.