Error Loading ChartDirector for PHP Extension

An attempt has been made to dynamically load ChartDirector, but it was not successful. Please refer to your ChartDirector for PHP documentation or click here for how to resolve the problem.

Error Log

Trying to load "phpchartdir530.dll" from the PHP extension directory "/usr/lib/php/extensions/no-debug-non-zts-20090626".
Fatal error: Call to undefined function dl() in /home/etfquest/public_html/ChartDirector/lib/phpchartdir.php on line 44