title: How to trigger an executable upon update of an RSS feed
body: <p>I have an RSS feed URL, that I can view in any Feed Reader.<br/>
  This RSS feed is not controlled by me, it is only consumed by me.
  <br/>This RSS Feed (<a href="http://oig.hhs.gov/rss/LEIE.xml" rel="nofollow">Office of Inspector General's Excluded Provider List</a>) links to a page with download-able files.</p>
  
  <p>These files are updated approximately once a month, and the RSS feed displays new "<strong>unread</strong>" items.</p>
  
  <p>What I want to do is write something (in C#) that checks this RSS Feed once a week, and when a new item (i.e. a new download-able file) is available, triggers off an executable.</p>
  
  <p>This is essentially like a very scaled-down RSS Reader, with the sole purpose of triggering an executable when a new item appears.</p>
  
  <p>Any guidance, advice would be greatly appreciated.</p>
  
  <p><strong>Edit:</strong><br></p>
  
  <ul>
  <li>I need help in determining when a new
  item becomes available for
  download.</li>
  <li>The running of an
  executable I can do.</li>
  <li>The
  executable that will run, will process
  the downloaded file.</li>
  </ul>