How do I get pl/sql developer to use a master tnsnames file on in shared directory on the server instead of the one on the workstation. I created a tns_admin system variable to point to the server. I removed the local tnsnames file. I can connect to databases using sqlplus and sql developer but not pl/sql developer. When I check pl/sql developer off line it is looking at my local drive. I am using the full Oracle 11.2 client on a vista workstation.