title: request.serverVariables() "URL" vs "Script_Name"
body: <p>I am maintaining a classic asp application and while going over the code I came across two similar lines of code:</p>
  
  <pre class="lang-vb prettyprint-override"><code>Request.ServerVariables("URL")
  ' Output: "/path/to/file.asp"
  
  Request.ServerVariables("SCRIPT_NAME")
  ' Output: "/path/to/file.asp"
  </code></pre>
  
  <p>I don't get it... what is the difference? both of them ignore the URL rewriting that I have set up which puts the /path folder as the root document (the above URL is rewritten to "/to/file.asp")</p>
  
  <p><strong>More info</strong>:
  The site is deployed on IIS 7</p>