ups :X you are right..but i will reformulate my problem. I have a lazarus program that uses a virtual data base machine and it was not made for me..i need to run it..i was told that in windows or linux the only thing that was needed to do was copy de libraries from postgreSQL for the default folder of the libraries. i have PostegreSQL installed in my mac, and i already checked that the libraries are where they are supposed to be but i am getting the same error as before. Like i said i am pretty noob in this stuff, so, if some1 can explain me in a simple way how i can run this program i would appreciate…