Is it possible to set up a link whereby the user of a system I have written (to which they are already logged in) can simply click on a link and open up the dialog window for the web messenger and be connected directly to a group of users without having to register? I can validate their login (since they are already logged into our system), and can potentially take their username and password from the system I am using and populate the user list programatically (in theory). That way they are taken directly to the webmessenger client as opposed to having to log in.