title: CHTTPFile::SendRequest get feedback data from server
body: <p>I used successfully to post a form to my webserver using MFC's function CHttpFile::SendRequest. The server respond success with return code 200. </p>
  
  <p>The problem is that I want to get more data from the server like a custom process code or a custom string code. For example pFile->ReadString(str)
  gives me the chance to read something but what ?</p>
  
  <p>How to setup my server to send back to caller such informations ? My server runs apache.</p>