title: "open_basedir restriction in effect" but file is in the correct dir
body: <p>I am trying to move some sites to a new server (running Plesk 11) and I am getting the following Error:</p>
  
  <blockquote>
    <p>Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. File(configuration.php) is not within the allowed path(s): (C:\Inetpub\vhosts\domain.com\domains\domain.com\www\;C:\Windows\Temp) in 
    C:\Inetpub\vhosts\domain.com\domains\domain.com\www\index.php on line 18</p>
  </blockquote>
  
  <p>But the <code>configuration.php</code> file is in <code>C:\Inetpub\vhosts\domain.com\domains\domain.com\www\</code>!</p>
  
  <p>I am nearly getting crazy here as this makes absolutely no sense to me.<br>
  I can even set the <code>open_basedir</code> value to <code>none</code> and still get the same error.<br>
  Same also for using PHP 5.2 or 5.3.</p>
  
  <p>The only thing which got me a little bit further was setting a <code>dirname(__FILE__)</code> in front of the call in <code>index.php</code> on line 18, but this is no solution as I can't alter all file references in the whole CMS. Because of this I also tried to add the <code>www</code> folder to the include path without any luck.</p>