I don't understand why do you want absolutly the commercial edition of a software ... and why do you hope that somebody give to you this software ?
There exist free solution (limited like visual prolog) or not (like swi-prolog : http://www.swi-prolog.org/
If your laboratory don't want to buy the software licence, use free softs. It is more simple :D
--- In email@example.com, "fathiaaljhay" <fathiaaljhay@...> wrote:
> can any one help me ,can you use visual prlog personal edittion for programming expert system without limit library?if no,please send me visual prolog commerical edittion and examples of expert system used visual prolog.
> thank you