Online gambling operators must receive the approval of The Autorité française de régulation des jeux en ligne (ARJEL -The French Online Gaming Regulatory Authority) before exercising. It is a priori control that is to say, ex ante, specific of the regulation mechanism. But litigation were born about updates of licensed software, the update requiring a new legal approval. Regulatory authority has just notify to the European Commission on April 15, 2012 the new system that it implements: the authorised operator may modify the software originally certified and will merely notify the Regulatory authority. If it considers it necessary, the Regulatory authority may require that the operator requests a new registration. The system becomes a "semi-ex-post" supervision .