For complete information on directory preparation and the directory preparation script comm_dssetup, see Chapter 8, Directory Preparation Tool (comm_dssetup.pl), in Sun Java Communications Suite 5 Installation Guide in the Installation Guide. This chapter provides instructions on how to run the Directory Server Setup script (comm_dssetup.pl) that configures your LDAP Directory Server to work with your Messaging Server, Calendar Server, or Delegated Admin CLI Utility configurations. The comm_dssetup.pl script prepares the Directory Server by setting up new schema, index, and data in your Directory Server. It must be run for new installations of Messaging Server and Communications Express. It is also a good idea to run the latest comm_dssetup.pl if you are upgrading any of the component products that depend on Directory Server.