I think revoking the license is the only tool in the toolbox that can force ChessBase to release their code. My understanding is that it is the action taken on

I think revoking the license is the only tool in the toolbox that can force ChessBase to release their code. My understanding is that it is the action taken once it is determined that they are violating the terms of the agreement. It's the basis of the legal battle. If you can't revoke the license when the terms are violated, you haven't got much of a license, have you?