Download Microsoft Jet Oledb 4.0 [work] May 2026

Download Microsoft Jet OLEDB 4.0

4. What if you absolutely must use Jet OLEDB 4.0?

You have two poor options:

• Check in your C:\Windows\System32 folder for msjet40.dll.
• Your connection string should look like:

  Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\myDatabase.mdb;
  

Included in Windows: It is part of the Windows Data Access Components (WDAC) and comes pre-installed on most modern Windows systems. download microsoft jet oledb 4.0

The "story" gets complicated when 64-bit Windows arrived. Microsoft decided that Jet 4.0 would remain 32-bit forever Microsoft Learn The Problem: Download Microsoft Jet OLEDB 4