The problem is likely to be that the Microsoft Access .mdb file is on a mapped network drive that can only be accessed by a named user.
There are three possible solutions:
-Or-
-Or-
logonuser=username:logonpassword:password.
Note In all cases where logonuser and logonpassword are used, the specified account on the JDBC-ODBC Bridge Server machine must match the account on the machine the network drive is mapped to. If you don't do this, the connection will fail. For example, if the JDBC-ODBC Bridge Server machine has a local account "JOBUser" with password "1234abcd" and the machine hosting the Access .mdb file has a local account "JOBUser" and password "xyz", the connection will fail.