1. A method for licensing at least one software program protected by a software protection, the method comprising: deactivating said software protection of said at least one software program, by using at least one predefined key, wherein: an additional software program functioning as a license manager has access to said at least one predefined key, said license manager is licensed by a master key, and the licensing of said license manager by said manager key deactivates said software protection of said at least one software program through said at least one predefined key.