Privilege Problems using Oracle ODBC Driver with non-Admin user

When I log into Windows with a user having Admin Privileges, everything works fine. But if the user has minimal privileges, I get the following errors.

1. The setup routines for Oracle ODBC Driver could not be loaded due to system error code 5

2. Could not load the setup or translator library.

Version Information
Operating System: Windows 2000/XP
ODBC Driver: