Yes,my user,password and sevice name are ok.
In fact,I try to execute the .bat file in my desktop (just to try it...) and happens what I told you before.But if I copy another exp file from one of my Oracle folders,that works properly,and try to execute it in my desktop,it happens the same crazy thing...
I tried to create the .bat file in the server desktop,or an oracle server folder,but it's useless...