title: Visual Studio Post-build event exited with code 1
body: <p>Here's the command from Visual Studio project properties (Post-build, runs on successful build):</p>
  
  <pre><code>copy /Y "$(ProjectDir)Library\Gecko\XulRunner\*.*" "$(TargetDir)"
  </code></pre>
  
  <p>This exits with Code 1. Here's the command from the Output window:</p>
  
  <pre><code>copy /Y "C:\Workspace\MyProject\Library\Gecko\XulRunner\*.*" "C:\Workspace\MyProject\bin\Debug\"
  </code></pre>
  
  <p>When I paste that command on the command line, it works properly with no error message. Most of the same issues I've found were caused by not surrounding the paths with quotes, or by trying to copy over read-only files. However, since the command does run successfully in the command line I'm not really sure how to debug this. Is there a way I can get more details about the failure?</p>