I have gotten it to work but I havent tried it in game yet.
On another note, when I first tried to install it I had Process Explorer by sysinternals running and got an error that looked like a securom error. I know securom prevents you from running process explorer while playing a game so that got my attention. It installed fine the second time after I had closed process explorer so that seems to point to securom. If it is indeed securom I am a little disappoint because I went with the steam version to avoid securom. Anyone have any insight?
Just remember that during the installation you have to connect to a license server.
Just found this directory: "C:\Users\xxxxxxx\AppData\Roaming\SecuROM\UserData " on my system and the files where created at the same time I installed the downloadable content.
There are 4 files in the folder:
There are also some entries in the registry that werent there before.