$startingFile = "C:\\Inetpub\\wwwroot\\mo\\pdf\\pdfs\\" . $file['name'];
$cmd = "PDFCreator.exe /PF\"" . $startingFile . "\"" ;


echo "<br />Running:<strong>" . $cmd . "</strong><br /><br />";

echo exec("cmd /c echo Hello World!") . "<br />";
echo system("cmd /c " . $cmd);  //don't <-- worx