Important: Jet OLEDB 4.0 is an older data access provider included with Microsoft Data Access Components (MDAC) and historically shipped with Windows and Office. It is not provided separately as a modern Microsoft download for newer Windows versions; on 64-bit systems Microsoft Jet 4.0 is unsupported for 64-bit processes. For modern development use Microsoft Access Database Engine (ACE) or other supported providers.
This package installs both the old Jet 4.0 OLEDB provider and the newer ACE OLEDB provider (used for .accdb files). download microsoft jet oledb 4.0