don't think it can be done, at least not in a non game specific way.
I'm sure someone will correct me if I'm wrong but I'd be surprised.
One thing you could try in future is when the game is originally installed use installwatch
to capture the registry changes, then export them to a .reg file. Run that file on the other computer to import the registry settings (the removable drive will probably need to be the same drive letter, the user name for the windows login may need to be the same too). In addition there may be settings in the documents and settings folder of the original install computer that would need copying across.