The issue focused on Microsoft's actions against servers running Internet Explorer 9 and Windows XP in China. Microsoft refused to patch both browsers because they ran software called JavaScript engines that Microsoft believes could contain malware. This hardware technology has since been rendered obsolete by processors built using newer technologies.

Microsoft argued that Microsoft Software License Terms prohibited its engineers from updating Internet Explorer software with Microsoft Software License Terms until Microsoft Computer Systems Corp., which manages Microsoft Windows systems, informed Microsoft Software License Terms technicians about it. Microsoft Software License Terms technicians confirmed