bypass tns_admin in Windows

Hello !

Mt company uses tns_admin to point out shared location for sqlnet.ora, tnsnames.ora (also listener.ora are located here). tns_admin is set in the registry of

our users laptops. This works fine connecting using the client.

The users have now installed Oracle XE in his laptop and have issues trying to start the listener for the local Oracle XE installation.

It reads the listener.ora file on the shared location and fails. We cannot reset the TNS_NAMES entry.

Is there a way to override the tns_admin settings in the registry ?

-- We tried setting tns_admin in a cmd window and then start he local listener, it failed .