title: How to disable the “Expect: 100 continue” header in WinRT's HttpWebRequest
body: <p>I'm developing an app that for legacy code reasons I can't upgrade for the new <code>HttpClient</code> so I'm using <code>HttpWebRequests</code>.</p>
  
  <p>In .NET 4 we could deactivate the Expect header (on posts requests) using  <a href="http://msdn.microsoft.com/en-us/library/system.net.servicepointmanager.expect100continue.aspx" rel="noreferrer"><code>ServicePoint.Expect100Continue</code></a> property, but on WinRT it's not available. </p>
  
  <p>How can this be accomplished on WinRT?</p>
  
  <p>EDIT: <code>System.Net.ServicePointManager.Expect100Continue</code> is not available either.</p>