title: ADFS - Windows integrated OR Forms authentication
body: <p>I'm configuring an ADFS Server and are trying to achieve user-friendly sign-on for our relying party applications. </p>
  
  <p>Currently there are two relevant options as far as I know:</p>
  
  <ul>
  <li><strong>Windows authentication</strong>: this works great as a single-sign-on provider, but provides a user-unfriendly pop-up if the user is not currently in the correct windows domain.</li>
  <li><strong>Forms Authentication</strong>: this will always ask for a login method regardless of where the user is coming from.</li>
  </ul>
  
  <p>My question here is, is it possible to satsify these requirements:</p>
  
  <ul>
  <li>If the user is logged in with the windows account, provide SSO</li>
  <li>Otherwise, display the forms login page and let the user enter his windows credentials.</li>
  </ul>