Does .NET 2.0 have classes to create a SAML Assertion



I'm still using .NET 2.0, and I need to create a SAML Assertion for SSO
between my site and a vendor site. Does .NET 2.0 have any built-in classes
to create the message, or do I have to buy a tool to do this?

Any help / code samples are appreciated.
Thank you!

btw - still in the investigation stage - not sure which version of SAML I
need yet.
.