SharePoint 2010 and LiveLink Integration - Information

SharePoint Foundation 2010 supports authentication methods that were included in previous versions and also introduces token-based authentication that is based on Security Assertion Markup Language (SAML) as an option. The following table lists the supported authentication methods.

Application that support Windows integrated authentication (NTLM or Kerberos, as described in http://spnego.sourceforge.net/

For more, please review http://msdn.microsoft.com/en-us/magazine/ff872350.aspx andhttp://www.codeproject.com/Articles/106439/Single-Sign-On-SSO-for-cross-domain-ASP-NET-applic

SharePoint and LiveLink Integration: Part 1How to use WCF Livelink web services to create a quasi single sign on or login with cookie equivalent of lapiUnderstanding WS-Federation