Download Microsoft Jet Oledb 4.0 _verified_ -

If your application absolutely requires the exact Jet 4.0 OLEDB provider and no substitute works, your only safe option is to:

If you absolutely need the original Jet 4.0 installer for an old 32-bit offline system, you can find it in the or Jet 4.0 Service Pack 8 updates – but these are outdated and insecure. Microsoft removed them from public download.

component. If you are encountering a "Provider is not registered" error, it is typically due to an architecture mismatch—your 64-bit application is trying to use a 32-bit driver. Microsoft Learn 1. Identify the Correct Replacement download microsoft jet oledb 4.0

Set conn = CreateObject("ADODB.Connection") conn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\data\old.mdb"

Depending on your operating system and need, here are your options: If your application absolutely requires the exact Jet 4

If you have a 32-bit application and a 64-bit Windows machine, you do not need a new download; you need to change how the application runs. Fix 1: Configure App as 32-bit Open your project in Visual Studio. Go to > Build . Change Platform Target to x86 (not "Any CPU"). Rebuild the application. Fix 2: Run in 32-bit Mode

If you are unable to install the matching ACE provider, or if you need to keep using the Jet provider for legacy reasons, you have some alternative options: If you are encountering a "Provider is not

For many years, this driver was a staple for developers creating small-scale data-driven applications. However, as the computing landscape evolved, Microsoft ultimately decided to deprecate the technology. The engine was last given a feature-level update with the release of Windows 2000, and Microsoft announced its official deprecation in the MDAC 2.6 release.