title: click once application uninstall
body: <p>does anyone know if there is a way to uninstall a click once application upon the install of a new one?</p>
  
  <p>We have software 2.0 and are going to be deploying 3.0, which is a completely new windows application.</p>
  
  <p>Is there a way in the settings or code to say upon the install of 3.0 uninstall 2.0?</p>