sentences:  On October 30, 2008, Microsoft officially discontinued the beta version of Windows Live Web Messenger and integrated the service into Windows Live Hotmail and Windows Live Contacts.In 2010, as part of the Windows Live "Wave 4" release, Windows Live Web Messenger is integrated into all Windows Live web services' headers, allowing users to sign into the Messenger service via the web browser on any Windows Live properties.MSN Web Messenger was first launched in August 2004.