Hewlett Packard S20/S20xi Photo Scanner Software Upgrade. This upgrade will update the HP S20/S20xi, HP Photo Scanner software, to the latest version 1.6 for Windows Me or Windows 2000. Download and Install Instructions: Download the 3 files into the same temporary directory. Unzip each file from this directory. This will make a subdirectory. When finished go the subdirectory for your language. Sample \"tempdirectory"\unziphere\s20\language\English. Run the setup.exe file from this directory. This will install the current version of the S20/S20xi HP Photo Scanner software.