"One of the goals of the Windows Live Wave 4 release was to improve interaction between Windows Live components. One of these improvements is the better integration of Windows Live Messenger into web services such as Hotmail.Continue reading : Speed Up Hotmail By Disabling Windows Live Messenger Autoload
Windows users who open the Hotmail website in Microsoft’s Internet Explorer will for instance notice that Windows Live Messenger is opened automatically. This can slow down the startup of Hotmail severely with some users reporting that Hotmail did not work at all..."
Posted @ ghacks.net