(1) The provisions of this Division are without prejudice to the application of other legal provisions concerning computer programs, particularly those concerning the protection of inventions, topographies of semi-conductor products, trade marks and protection against unfair competition, including the protection of business and trade secrets, as well as agreements based on the law of obligations.
(2) Contractual provisions which are contrary to section 69d (2), (3), (5) or (7) or section 69e are null and void.