henry0 - 3:46 pm on Sep 24, 2012 (gmt 0)
I had added the dir already, but was not able to reach it
adding your suggestion did it!
(yes it is a PLESK)
<edit> Forgot to mention</edit>
I reach the dir from a config script
realpath($_SERVER['DOCUMENT_ROOT'] . '/../any_dir/')
. ini_get ('include_path'));