The company has been involved in on-going legal action over its bundling practices, which have been heavily criticised because they make it harder for rival software producers to market their products.
Although Microsoft has made some concessions, such as giving manufacturers the option to install competing internet browser software, it has decided to bundle together several new features of Windows XP. These include software applications for instant messaging and streaming media, which are also produced by competing software companies.
The Windows XP system is scheduled to be released in October, but the US government may seek to impose an injunction to postpone the release date.