Microsoft has launched its latest bid to be computer users' default window on to the web.
The software giant has released the latest version of its popular web browser, Internet Explorer 9 (IE9), which it will help revive its fortunes in an increasingly competitive market.
Since 2003 the company has seen a 97% lead dwindle to 60% today.
It will compete with new versions of other popular browsers such as Mozilla's Firefox and Google's Chrome.
