You must install Rational Directory Server (RDS) to run Rational Synergy. RDS is a powerful solution for the centralized database that can be used by the enterprise to store and retrieve the large volume of data. RDS is a separate installation. For complete information about installing RDS, see the Rational Software Information Center at http://publib.boulder.ibm.com/infocenter/rsdp/v1r0m0/index.jsp.