if ($this->iswindows) {
            $AbsoluteFilename = preg_replace('#^' . preg_quote($this->realPathSafe($this->config_document_root)) . '#i', str_replace('\\', '\\\\', $this->realPathSafe($this->config_document_root)), $AbsoluteFilename);
            $AbsoluteFilename = str_replace(DIRECTORY_SEPARATOR, '/', $AbsoluteFilename);
        }