title: IIS Rewrite Input Types
body: <p>What are the <code>input</code> types you can use in IIS rewrite rules?  The ones I mean are like as follows:</p>
  
  <pre><code>&lt;conditions&gt;
      &lt;add input="{HTTP_HOST}" type=”Pattern” pattern="^www\.mysite\.com$" negate="true"&gt; 
  &lt;/conditions&gt;
  </code></pre>
  
  <ul>
  <li>HTTP_HOST</li>
  <li>URL</li>
  <li>REQUEST_FILENAME</li>
  <li>?</li>
  </ul>