As a followup to this, with standard disclaimer that I have not used OpenLink for this exact connection, I am going to run under the following assumption:

You are using the OpenLink Request Broker on NT.

If this is the case, I'm going to guess that you simply either make a connection to the Access database engine using the OpenLink software and specify the database in your DBI connect string.

$dbh = DBI->connect('dbi:ODBC:server=$server;database=$mdbfile', $user, $pass, { RaiseError => 1});

Thus, you're making your connection to Access and giving it the database file you wish to use. On the NT side, you may or may not need to provide a database specification in the OpenLink DSN.

This is just a hazarded guess, but it would seem to be consistent with the DBI API, and from what I've seen of OpenLink (I use it for MS SQL 7 connections), it should be adequate, although I've only used DSNs with defined database connections. However, since each database engine has its own set of quirks, this may be the right way for Access.

ALL HAIL BRAK!!!