Have you tried DVD43 as an alternative? http://www.videohelp.com/tools/DVD43
Click on the [I]Download from mirror (direct link) [/I]on that page, as the author’s site seems to be extremely slow right now.
I don’t believe it is compatible with 64bit operating systems however.
Edit: A quick search in the DVDFab forum shows that DVD Region +CSS Free is a dead program, and will not be updated.