title: Integrated Windows Authentication for Multiple Domains
body: <p>I have Asp.net website for domain A users with the Integrated Windows Authentication.</p>
  
  <p>Now users from domain B need to access the website.</p>
  
  <p>But Domain B users receive pop-up window to input the authenticated information when they access the website</p>
  
  <p>My question is:</p>
  
  <p>How to configure the IIS or Windows Server to allow Domain B users to access the website without the pop-up windows for authentication, just like the users from Domain A.</p>