title: CAC cards and web servers
body: <p>I have a client that wants to implement CAC with our website.  Usually the user already has access based on the certificates assigned to them.</p>
  
  <p>They want to be validated by entering their CAC pin code when they click a button to log in.  </p>
  
  <p>I'm using ActivClient to manage the CAC but I don't know how to have the website communicate with the card reader to have the user input the pin code and validate it.</p>
  
  <p>Is this done through IIS settings or do I have to update my code to somehow communicate with the middleware?</p>
  
  <p>Thanks in advance</p>