I was just trying to install pdfcreator on a machine that here at work but the installer gets stuck when it says "Downloading additional files". I don't know if this is where the addware is getting downloaded which is mentioned in this thread: http://www.pdfforge.org/forum/open-discussion/8460-please-drop-bundled-installer-it-installing-stuff-considered-malware-eg-b
If so, it is certainly being blocked by our firewall. I have not seen any option in the software to disable the downloading of additional stuff, so I'm kind of stuck now.