Internet Explorer, abbreviated IE or MSIE, is a proprietary graphical web browser made by Microsoft and included as part of the Microsoft Windows line of operating systems.It has been the most widely-used web browser since 1999.The Component Object Model (COM) technology is used extensively in Internet Explorer.It allows third parties to add functionalities via Browser Helper Objects (BHO); and allows websites to offer rich content via Active X.
id=34731&WT.mc_id=rss_allproducts_ie Cumulative Security Update for Internet Explorer 8 in Windows Vista (KB2744842) 
Updates : Internet Explorer Updates Internet Explorer has been designed to make everyday tasks easier, provide dynamic security protection and improve the development platform and manageability.
End user improvements include a streamlined interface, tabbed browsing, printing advances, improved search functionality, instant feeds (RSS), dynamic security protection, and more.
Obviously,...), it’s finally reached a point where it’s used on less than 1% of systems worldwide.
That said, there are still some people who use Internet Explorer 6 to this day, and they’ve got some valid reasons.