By default, you do not need to perform any post-installation configuration of the desktop client; however, configuration is required to the start-up script of the desktop client under the following scenarios.
On Windows computers, add a user-level environment variable named TEP_JAVA_HOME whose value is the fully qualified directory location of the Oracle JRE you want to use. For example (assuming a Windows 7 desktop), TEP_JAVA_HOME=C:\Program Files (x86)\Java\bin\. On UNIX and Linux computers, define the same environment variable with the fully qualified location of the Oracle JRE you want to use for the Tivoli Enterprise Portal desktop client.