– Starting with MDAC 2.6 Jet is no longer shipped as a part of MDAC.
– MDAC 2.5 SP2 had complete install of Jet Components. Recommended to upgrade to 2.6 or higher from this version.
– How to acquire Jet Components:
239114 How to obtain the latest service pack for the Microsoft Jet 4.0 Database
– Versions prior to 2.6 shipped Jet engine msjet40.dll, and MS Access ODBC Driver (Jet Interface) odbcjt32.dll
– Installing latest MDAC may be perceived as a remedy to allow client machines to connect to a Jet database
– Bad MDAC installations may cause problems creating DSN’s or initialising Jet Provider.