<P>I guess this is a result of the new friendly relationship between Sun and Microsoft:&nbsp; A <A href="http://msdn.microsoft.com/library/en-us/dnglobspec/html/websso.pdf">document on MSDN </A>describes how to interoperate with <A href="http://www.projectliberty.org/specs/liberty-idff-arch-overview-v1.2.pdf">Project Liberty</A>. </P> <P>Project Liberty is Sun's challenger for Passport, Microsoft's single-signon mechanism.&nbsp; I want to see some single-signon mechanism take off so I can use it on my own sites; I don't care which one.&nbsp; Microsoft charges for Passport, which rules it out for me.<BR><BR></P>Thu, 01 Sep 2005 19:17:09 GMT