title: Counting unique users on Citrix?
body: <p>I know very little about Citrix other than (correct me if I'm wrong) it runs a separate copy of windows, plus all apps etc, for each concurrent user of a citrix server.</p>
  
  <p>If deploying an app I have written to a citrix server, is there any way to tell how many users there are in total?  e.g. can citrix give me a unique id for the client workstation or user account?  Or am I limited to detecting concurrent users?</p>