Subject Re: Firebird Embedded on web hosting
waow ! i have learned something today :)

i didn't know that envirenment options are associated to the process and not to the machine .

anyway many many thanks it's solved now ... finally :)

if anyone else have this problem maybe in the future, this is what  worked for me

/*this will give absolute path on the server */
string s = Path.GetDirectoryName(Server.MapPath("Default.aspx"));

            /* some logic only for me */
            s = s.Replace("v1", "Bin\\FIREBIRD_LOCK");

            Environment.SetEnvironmentVariable("FIREBIRD_LOCK", s);

           /* after that you can make calls to the database or instanciate entity framework context  */