If you cannot activate the old software, these modern tools offer similar features (dictionaries, synonyms, and letter templates) for free: A collaborative dictionary and translation tool. Le Robert Correcteur
The landscape of reference material has shifted significantly since the peak of standalone dictionary software. Many users now find that the utility once provided by "36 Dictionnaires" is surpassed by modern, legitimate alternatives: 36 Dictionnaires Et Recueils De Correspondance Serial Key