title: Creating version independent Outlook add-ins
body: <p>Looking for a library to create outlook add-in's for outlook 2010, 2007 and outlook 2003</p>
  
  <p>Found this <a href="http://www.add-in-express.com/add-in-net/video.php" rel="nofollow">http://www.add-in-express.com/add-in-net/video.php</a> which looks very good but also pricey since it's a general purpose library for creating addins for other office products as well</p>
  
  <p>Is there any other library for comparison and hopefully cheaper too ! google search is inadequate with a rather generic name such as outlook add-in library/tool which return results for existing add-ins etc.</p>
  
  <p>thanks</p>