Before you can install the updated Rendition Engine you must remove the previous version. A Rendition Engine upgrade requires a complete reinstallation of the software.
When upgrading from IBM® FileNet® Rendition Engine version 4.5, the upgrade program uninstalls the existing Rendition Engine software. But if you are upgrading to Windows 2008, you must uninstall the previous version of the software manually first.
If you are upgrading from Rendition Engine version 4.5.1 5.0 or 5.1.0, the upgrade program automatically uninstalls the 4.5.1, 5.0 or 5.1.0 version before installing version 5.2.0. You do not have to uninstall any software.