Hello all I am developing a 3rd party web application for racedepartment.com with C#.Net and I'm investigating if I can do a single sign-on through XenForo. In a nut shell, what I will try to do is the following: 1. user logs into Xenforo forum 2. there will be a link in xenforo for the new web application 3. when user clicks on link, I would like to grab the xenforo username, check if he/she is authenticated and then pass the username to the new application. If not authenticated, then new web app will still load, but no user will be signed in. Is this possible please? And if so, how can I do it? Thanks!!!