title: Urldecode in batch file
body: <p>How can I 'urldecode' the following string in a batch file? I need to change the following</p>
  
  <pre><code>http&amp;#x3a;&amp;#x2f;&amp;#x2f;www.example.com&amp;#x2f;some-page&amp;#x2f;some&amp;#x2f;link.html
  </code></pre>
  
  <p>to this</p>
  
  <pre><code>http://www.example.com/some-page/some/link.html
  </code></pre>
  
  <p>It can be done in Javascript with decodeURIComponent() but I've no idea how to do it in a batch file just within MSDOS etc. </p>