Share Session Across Multiple Applications

Question

I need to share sessions against multiple asp.net applications. I have seen the sso method but that will be only used for authentication. I need it for the full session values. E.g. I have an application called A and one called B. Now I got logged in to application A and have some activity on which session values are stored. Now if I access application B, all the session values should also be available in application B. The application exists in the same solution. For the SQL session, I read that it is slow in performance.