title: How to use subdomain like user.test.com in IIS 7
body: <p>How to use subdomain like user.test.com in IIS 7. Suppose we have main domain test.com.
  I want that when we call user.test.com IIS will use test.com domain. And subdomains may be a lot of amount.</p>
  
  <p>Thanks, in advance</p>