Download ~repack~ Microsoft Jet Oledb 4.0 Jun 2026

If you developed the application yourself in Visual Studio, you must force the application to run in 32-bit mode. Open your project in .

What (e.g., Windows 10, Windows 11) and system architecture (32-bit or 64-bit) are you using?

: It is currently in a state of functional deprecation, meaning no new features are being developed. How to Access Microsoft Jet OLEDB 4.0

Instead of searching for a "Jet 4.0" download, modern systems require specific workarounds or the use of its successor, the provider. Core Solutions for Jet 4.0 Connectivity download microsoft jet oledb 4.0

on modern versions of Windows (10 and 11), but it only exists as a 32-bit (x86)

Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\path\to\database.mdb;Persist Security Info=False;

Method 1: Change Your Application Target Architecture to x86 If you developed the application yourself in Visual

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: Starting with Windows 2000, the Jet 4.0 engine became a core component of the Windows operating system.

Most users today are on Windows 10 or 11. If you need to interact with .mdb files on a modern system, you should not try to hunt down the old Jet files. Instead, use the official replacement provided by Microsoft: the . : It is currently in a state of

Troubleshooting: "The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine"

If you need help migrating your application, please let me know:

with 200+ upvotes, where frantic developers realized that the Jet 4.0 engine was purely 32-bit and would never natively speak to a 64-bit operating system. Ancient MSDN forum posts