Has anyone managed to make this "prince.php" class work on windows??

"proc_open" keeps returning false

It is possible that an incorrect path to engine/bin/prince.exe has been passed into the Prince constructor, in which case proc_open will fail.

If the path looks correct, could you try printing the $pathAndArgs variable from the private convert() method and see what is there? Perhaps some arguments are being placed incorrectly and causing the proc_open to fail.

tankx K-)