Sun Java Enterprise System 5 Update 1 Upgrade Guide for Microsoft Windows

Upgrade Directory Proxy Server Dependencies

It is generally recommended that all Java ES components on a computer system (and in a computing environment) be upgraded to Release 5U1. Before upgrading Directory Proxy Server, you need to upgrade CAC, MFWK, SJWC, and Security components (NSS,JSS,NSPR). Also, Directory Proxy Server requires that Windows Installer patch (126910–02) is already applied.