How to obtain Drupal session cookie via an XMLRPC request? I would like to implement single sign-on to Drupal and other site (not PHP) via xmlrpc.

Is there a way to make an xmlrpc call with user name &amp; password and in return obtain information on success of authentication and the session cookie - so that we could set the cookie and log in to both sites at once?
The Services module does this. See its user.login service. Core Drupal does not offer this service via XML-RPC.