title: ConnectEx with IOCP problem
body: <p>I've made a simple dummy server/dummy client program using IOCP for some testing/profiling purpose. (And I also wanted to note that I'm new to asynchronous network programming)</p>
  
  <p>It looks like the server works well with original client, but when the dummy client tries to connect to the server with ConnectEx function, IOCP Worker thread still gets blocked by GetQueuedCompletionStatus function and never returns result while the server succeeds in accepting the connection.</p>
  
  <p>What is the problem and/or the reason, and how should I do to solve this problem?</p>