Prometheus 6

But Blizzard’s theory is wrong, because it confuses a copyright holder's intellectual property rights in the software it develops with a buyer's rights in the actual copy of the software....

Blizzard argues that players aren’t owners but merely software licensees, so section 117 doesn’t apply. But court after court has held that the question of whether a user is an owner for purposes of Section 117 depends the substance of the transaction, not just how one party wants to describe it. For example, if you buy the software, keep it on your own computer and don’t have to return it when you are done, you probably own it.

Do You Own Your Software? WoW Glider Case Not Just About Getting to Level 70.
Posted by Corynne McSherry

Unbeknownst to most software users, a lawsuit now at a critical stage could drastically expand the ability of software vendors to restrict how their customers can use their software.