Hi Steve,
No, unfortunately the only workarounds are running CreatePDF on a proxy server, or asking rackspace to give you access to a filesystem without NOEXEC (which is unlikely). It's just a common limitation of cloud hosting. You could see about finding a cheap virtual server on another host just for createPDF. Another benefit of that is offering PDF creation as a free or paid service for active clients, so you could setup something like pdf.yourcompany.com on a virtual host and offer that only to your clients.
Dave Edis - Senior Developer
interactivetools.com