title: WCF - quick response with status then continue doing longer process
body: <p>I spent few days search on this case.  I checked out all wcf asynchronous implementaions. 
  I wasn't able to find what I was looking for.  </p>
  
  <p>Below is scenario.</p>
  
  <ol>
  <li>WCF is running to accept xml</li>
  <li>WCF needs to response to user for success receiving xml and release
  the request immediately</li>
  <li>WCF then needs to do processing to save xml to database and parsing xml to
  convert something else.</li>
  </ol>
  
  <p>I don't want to use separate service to process above.  I want to use one service to handle all 3 cases above.  </p>
  
  <p>I checked out asynchronous way of coding in WCF, but this doesn't release the request right away.  What is the best practice for this?  Is there any sample code I can use?</p>
  
  <p>Thank you in advance.</p>