title: Why does the Web Deploy Agent Service listen on port 80 and 8172
body: <p>On four Win Server 2008 R2 boxes, we have MS Deploy installed. It listens on port 80 and 8172 which throws into doubt all the other material out there on the web about how there's no need to change the port 80 default when running on IIS 7.</p>
  
  <p>I can't understand it. Why is it using BOTH ports? I can't follow the instructions to move it to 8172 since it has something already registered there.</p>
  
  <p>There are two problems it causes: 1) an extra attack surface I want to close 2) it keeps our load-balancer from detecting when IIS is stopped and customers get 404s from MsDepSvc!</p>
  
  <p>It's so stupid.</p>