Before you upgrade the Content Engine Client files to version 5.0.0, you must remove the version 4.0 Client files.
If you are performing a staged upgrade, and are upgrading Application Engine before you upgrade Content Engine, it is not necessary to do this task at this time. When you upgrade Content Engine to 5.0.0, you must then use this task to run the 5.0.0 Content Engine Client installer on your Application Engine, and redeploy the Workplace application.
Perform the following procedure to identify and uninstall all Content Engine Client version 4.0 files on an Application Engine Server machine. Repeat the procedure for all other Application Engine Server machines.
Depending on the Content Engine Client fixpack versions that you have installed, you might have more than one instance of the Content Engine Client 4.0 installed. Additionally, the version 4.0 Content Engine Client installer supported installing multiple instance of the Content Engine Client on the same server. You must uninstall all instances before upgrading to the 5.0.0 version of Content Engine Client.