First thing: Thanks for the answer! Second: in a first time I had tried your suggest without success, today, tring again, calling a Shell with Net Use the connection will show inside shred drive list... This time I have put a little wait function before proced with my elaboration (I'm writing a software to read and elaborate some files and send the results to the shared drive) and this time has work. I will make some other tests and if something strange I will write here... Anyway, thanks for help.