Consequently, the Advocate General proposes that the Court of Justice should declare that EU law precludes a national court from making an order, on the basis of the Belgian statutory provision, requiring an internet service provider to install, in respect of all its customers, in abstracto and as a preventive measure, entirely at the expense of the internet service provider and for an unlimited period, a system for filtering all electronic communications passing via its services (in particular, those involving the use of peer-to-peer software) in order to identify on its network the sharing of electronic files containing a musical, cinematographic or audio-visual work in respect of which a third party claims rights, and subsequently to blo ...[+++]ck the transfer of such files, either at the point at which they are requested or at the point at which they are sent.