Windows 8 has just been released and it doesn't have full support regarding applications and drivers and such you might encounter errors like the one you're having. Try and run the software in compatibility mode, because as far as I can see, the software is a bit old and hasn't been updated in a while.
Although Windows 8 is less resource demanding than its predecessor, there are things that need to be fixed regarding applications due to the new structure and architecture the operating system is using.