[new] Download Microsoft Jet Oledb 4.0 May 2026
The Microsoft Jet OLE DB 4.0 provider is a legacy database technology that served as the backbone for desktop-scale data management throughout the 1990s and early 2000s. While it remains a familiar term for developers maintaining older systems, its modern availability and practical utility have shifted significantly. Availability and Download Status
| Provider | Supports | Download | Architecture | |--------------|--------------|----------------|--------------------| | Microsoft Access Database Engine 2016 Redistributable | .ACCDB, .MDB, Excel .XLS/.XLSX, CSV, etc. | Microsoft Download Center | 32-bit & 64-bit (choose carefully) | | Microsoft ACE OLEDB 12.0 or 16.0 | Same as above | Same as above | 32/64-bit | | .NET Data Providers (OleDb in .NET) | Uses ACE if installed | Part of .NET Framework | Any CPU | download microsoft jet oledb 4.0
Are you tired of encountering errors when trying to connect to your Access database or import data from an Excel spreadsheet? Chances are, you're missing the Microsoft Jet OLE DB 4.0 driver. In this post, we'll walk you through the process of downloading and installing this essential driver, as well as provide some troubleshooting tips and alternatives. The Microsoft Jet OLE DB 4
Microsoft Jet (Joint Engine Technology) 4.0 was designed as a general-purpose database engine for 32-bit environments. Choose the 32-bit version unless you specifically need
- Choose the 32-bit version unless you specifically need 64-bit.
- You cannot install 32-bit and 64-bit ACE on the same machine (common with Office conflicts).
If you are seeing an error that the "provider is not registered on the local machine," it is typically due to a bitness mismatch—the Jet engine is strictly 32-bit and cannot be called by 64-bit applications. Understanding the Microsoft Jet OLEDB 4.0 Provider
- In IIS (for web apps): Enable 32-bit applications in the application pool.
- In .NET: Set the build target to
x86. - In SSIS: Run the package in 32-bit runtime mode.
(Note: The empty.mdb file doesn't need to exist – we're just testing provider registration.)
