To install additional components, you can run the installer again. The installer detects installed components and uses them to satisfy the dependencies of the components you are adding. Installed product components are disabled at the Choose Software Components page.
For example, suppose you have installed Access Manager and its required components during this installation. Later, you decide to install Portal Server. The existing instance of Access Manager will be used to meet the Portal Server dependency on Access Manager. You will not be asked to reinstall Access Manager.
When adding product components to a host where a Java ES installation has already been done, be sure to use the correct paths and passwords if the new product component will use a product component that is already installed and configured. If you do not remember the correct paths, refer to the Installation Summary for the original installation before adding any product components to the host.