The Microsoft Presence Sample for Web Based Applications demonstrates three different approaches for displaying presence status and providing real-time collaboration options on web pages:
* Using the NameCtrl ActiveX control that is installed by Office 2003 and used by Windows SharePoint Services and SharePoint Portal Server 2003 to display presence and provide real-time collaboration options
* Using a custom ActiveX control, the Presence Controls, to provide a custom user experience
* Using simple scripting from the web page to access The Office Communicator 2005 automation Interfaces to provide a basic level of functionality
