[HiTech RedNeck]

So is this administrative ruling "it" -- or can Lexmark still sue in Federal court to try to overturn it?

[antiRepublicrat]

So is this administrative ruling "it" -- or can Lexmark still sue in Federal court to try to overturn it?

I'm not sure. The Copyright Office, along with the Library of Congress, are given a lot of power in interpreting how the DMCA may affect commerce and technology, and to make exceptions. Congress defers quite a bit to them. Lexmark could probably appeal, but I don't think it will go anywhere.