we'll i'm not that sure that office would allow you to integrate the serial from WPI, with other words it depends on the application you're trying to install ex. for nero you could do /SN=xxxxx-xxxxx-xxxxx-xxxxx-xxxxx /WRITE_SN and the serial will be applied automatically, but as for office i've got no idea when it comes to your second question: the 'useroptions.js' file does exist in fact, it's under the WPIScripts folder, but why dont you have a look and be sure that youve got the latest version of WPI, you mentioned "its not compatible with version 5.0" last version of WPI is 5.1 so why not get the last one then ? hope it helps a bit this is some brief instructions on answering your curiosity my dear italian fellow