The MSN Messenger can be used as an electronic instant messaging client, as well as a functional browser. With this application, there would be no use for a separate browser, or at least the IE. This is because the IE provides internet surfers limited security features and functions, not to mention poor compatibility with CSS styled web documents. This is also true with the MSN Messenger when used as a browser. This is probably because both programs were developed by the same company. But since you could use it as an instant messaging application, you should choose this program over the IE internet site browser.