I didn't have any trouble with the original installation, nor in general have I had this problem, but Norton broke the patch by quarantining "forwardcdkey.dll". I told Norton to ignore that file, and had to "unblock" the patch executable.
That's a Win7 thing, I think. When you try to run the file, you get the properties instead. There's an "unblock" button there.
This message was edited 1 time. Last update was at Dec 14. 2010 14:44