Windows Live Web Messenger was the browser-based version of Windows Live Messenger developed by Microsoft which allowed users to send instant messages online and in real-time with others using the Microsoft Messenger service from within a web browser. The service allowed users without administrative privileges on their computer, such as at a shared public computer, to chat with others on their Messenger contact list without having to install the Windows Live Messenger client. 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.