title: File.OpenRead() accesses file on share within workgroup but not a remote share?
body: <p>I have an ASP.NET MVC application that attempts to read a file in using a filestream and File.OpenRead().
  When the path to the file is a share on the same workgroup, and I give access to NETWORK SERVICE for the share, this works perfectly as desired.</p>
  
  <p>However, when the path to the share is a UNC path to a remote share within the LAN, with read permissions open for "Everyone", the "File.OpenRead()" method throws an exception saying "Could not find a part of the path".</p>
  
  <p>In my test cases I'm debugging locally with the ASP.NET MVC app being given a UNC path to the computer that it's actually running on.
  It's a share on my C drive, being "Shared" with permissions to "Everyone" for read access.</p>
  
  <p>Is there something in IIS that needs to be configured?
  If I try to impersonate, in this context, the impersonation doesn't matter because NETWORK SERVICE was the user trying to access the files when it worked for a share in the same workgroup.</p>