Look in the changelog that is supplied with the WPI download it has been done you just need to save different configs and call them. * Added command line support to specify different config and user options files: WPI.hta options=useroptions_mritter.js config=config_mritter.js check=Work timer=30 If a path is not specified for the file, it will assume they are in WPIScripts. It will still check for: WPI.hta Work 30 for backwards compatibility. But update your tags, please. They will probably change in the future. Thanks to Dje again for the code and help. NOTE: Paths can be full (starting with a drive letter) or relative to WPI.hta (starting with '.\' or '..\') and must end in '.js'. Spaces are supported only is a path is provided and properly quoted: (config="c:\space in\file path.js").