The Access Violation error occurs when you have DivX 7 with its own copy of the Microsoft Visual C++ 2005 Runtime Redistributable (VC80CRTRedist - 8.0.50727.4053). The installation of PDFCreator conflicts with it, so you have to kill the installation process (...exe.tmp) in the Task Manager.
Workaround: install PDFCreator first and DivX second.
This is clearly not a true solution, but you won't run into this error anymore.