If you are using Knowledge Center server as the location from which users install SmartHelp, you should be aware that when the Knowledge Center server is upgraded, the latest version of the SmartHelp Installer is installed on the server. If you do not want to use the new version of SmartHelp, you can do two things:
Use the SmartHelp Installation Location setting on the Server Properties page in Knowledge Center. The Custom URL option allows you to specify a URL to a different location. Before you upgrade the Knowledge Center server, you can copy the SmartHelp install package from the location indicated in the Knowledge Center URL field and copy it to the custom location. Users are then prompted to install the older SmartHelp version from the custom location and not the upgraded SmartHelp in the location on the Knowledge Center server.
If you are already using the Knowledge Center Installation Location, copy the SmartHelp Installation files from the location and paste them in another location before you upgrade Knowledge Center. After you upgrade Knowledge Center, copy the new files from the location and store them in another location, then copy the older version of the SmartHelp files back on to the server.