title: WebClient class doesn't exist in Windows 8
body: <p>I want to use a HTTP webservice, and I've already developed an app for wp7.</p>
  
  <p>I use the WebClient class, but I can not use it for windows 8 ("error: type or namespace can not be found").</p>
  
  <p>What else can I use? </p>
  
  <p>Can you provide me a sample of code?</p>
  
  <p>Does Microsoft have a site to help when a namespace don't exist?</p>