http://blogs.technet.com/sharepoint_attack/archive/2009/04/29/forms-authentication-esempi-e-guide-inglese.aspxOffice SharePoint Server 2007 provides a flexible and extensible authentication system, which supports authentication for identity management systems that are based or are not based on the Microsoft Windows operating system. By integrating with ASP .NETen-USCommunityServer 2.1 SP1 (Build: 61025.2)