title: Australia Post shipping rate calculation
body: <p>Is anyone having any experience with any eCommerce application where you have calculated shipping rate on fly. I am in particular referring to Australia Post service.</p>
  
  <p>Could you please guide me in right direction. I am thinking of using Provider pattern by which I can plugin any shipping provider according to user's profile.</p>
  
  <p>Explanation as per Australia Post is what I am looking for but if anyone has got any suggestions using any other provider, I am fine.</p>
  
  <p>FYI - I am referring to ASP.net, c# (.Net 4.0)
  Thanks in advance,</p>