High Quality Download Microsoft Jet Oledb 4.0 Jun 2026

The Microsoft Office System Access Database Engine (ACE) provider replaced Jet. ACE supports both newer file formats (like .accdb and .xlsx ) and older formats (like .mdb and .xls ). Crucially, ACE is available in both 32-bit and 64-bit versions. To migrate to the modern provider:

Once this finishes, your 32-bit application should be able to connect to the database using the Microsoft.ACE.OLEDB.12.0 provider.

or for newer ACE 16.0:

The Jet engine was superseded by the . Understanding the difference is vital for anyone searching for a Jet download:

If you are using C# or VB.NET:

Download and install the (choose the _x64 version). Open your application configuration or source code.

Fix 2: Change Visual Studio Build Target (For Desktop Developers) Open your project in Visual Studio. download microsoft jet oledb 4.0

Users often see this error on 64-bit machines because there is no 64-bit version

Go to the top menu and select > [Project Name] Properties . Click on the Compile or Build tab. Locate the Target CPU or Platform target dropdown menu. Change the setting from Any CPU or x64 to x86 . Rebuild and run your application. Modern Alternatives to Jet 4.0 The Microsoft Office System Access Database Engine (ACE)