title: close an open folder programmatically in vb.net
body: <p>I have searched but cannot find a function that can close a folder in vb.net. You can kill a running app by finding its handle/windows-title/id, then issuing process.kill() command, but the same does not work on folders. For example, suppose:</p>
  
  <blockquote>
    <p>C:\downloads\videos\</p>
  </blockquote>
  
  <p>is open on my computer and I want to programmatically close it. How do I do that?</p>