config.inc

I fully realize about 500 people have posted previously regarding the configuration.inc file and I am being completely redundant here, but there is just something that I am not getting.

I am running a Windows machine, error returning is :

Warning: require(D:/inetpub/vhosts/padtechnologies.com/httpdocs__SUBDIRECTORY__/includes/qcodo/_core/qcodo.inc.php) [function.require]: failed to open stream: No such file or directory in D:\inetpub\vhosts\padtechnologies.com\httpdocs\inventory\includes\prepend.inc.php on line 24

Fatal error: require() [function.require]: Failed opening required 'D:/inetpub/vhosts/padtechnologies.com/httpdocs__SUBDIRECTORY__/includes/qcodo/_core/qcodo.inc.php' (include_path='.;./includes;./pear') in D:\inetpub\vhosts\padtechnologies.com\httpdocs\inventory\includes\prepend.inc.php on line 24

The directory I am using is as follows:

define ('__DOCROOT__', 'D:/inetpub/vhosts/pt.com/httpdocs');
define ('__VIRTUAL_DIRECTORY__', '');
define ('__SUBDIRECTORY__ ', '/inventory');

I don't see how else to phrase it as the index.php file lives on the server@ D:\inetpub\vhosts\pt.com\httpdocs\inventory\index.php

Insight please?