title: IIS Virtual Directory map to network drive (with drive letter) but fail to create file
body: <p>I am using C#/ASP.NET, IIS6 on Windows Server 2003.</p>
  <ol>
  <li><p>Map the data server shared folder to the WebServer with driver letter V:\</p>
  </li>
  <li><p>On the WebServer, IIS created a virtual directory and pointed to 'local location' with V:\ . Since there is no 'Connect As', not sure which USER will be used</p>
  </li>
  <li><p>In my WebMethod, I want to create file on the shared folder with FileStream.Write().</p>
  <p>I got IO Exception on the action, any hint?</p>
  </li>
  </ol>
  <p>P.S. I have added ASPNET/NETWORK SERVICE on the data server shared folder.</p>
  <p>thanks!
  Gavin</p>