title: Automatically Update WPF Application
body: <p>I need to have my WPF application pull updates across the internet.</p>
  
  <p>I'm not planning to use ClickOnce because it doesn't support any security mechanism other than Windows Integrated, and that too, only over an intranet.</p>
  
  <p>Is there anything (free open source software) out there to help me with this?</p>
  
  <p>Practical advice would be appreciated, too.</p>