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

Identifying Installed Java ES Patches

You can execute the utility ListJavaESPatches.exe to identify the installed Java ES patches in the system. This utility is available as part of Java ES 5 installation and its default location is <JavaES5InstallDir>\utils\patch.

The utility ListJavaESPatches.exe is also made available through the newer versions of the Java ES 5 Update 1 patches.