If your web application throws this error on Internet Information Services (IIS), you must configure the application pool to allow 32-bit execution. Open the ( inetmgr ). Click on Application Pools in the left sidebar.
If your website or web service connects to an Access database via Jet and crashes on a 64-bit server, change your Application Pool settings. Open the . Click on Application Pools in the left connections pane. Select the Application Pool assigned to your website. Click Advanced Settings in the right actions pane. Set Enable 32-Bit Applications to True . Click OK and recycle the application pool. 3. For End-Users Running Third-Party Software
What is the you are encountering? Share public link download microsoft jet oledb 4.0
If your environment is correctly configured for 32-bit execution, use the following standard connection strings to connect to your data sources. For Microsoft Access (.mdb):
For 64-bit Windows 7/8/10, the 64-bit Jet driver is part of but not installed by default. If your web application throws this error on
If you do not own the source code of the app you are trying to run, you have two options:
You are upgrading to the newer Microsoft Access Database Engine to read .accdb or .xlsx files. How to Get Microsoft Jet OLEDB 4.0 Components If your website or web service connects to
Provider=Microsoft.ACE.OLEDB.16.0;Data Source=C:\myFolder\myDb.accdb;
Because Jet 4.0 is a system component, Microsoft no longer provides a standalone "Jet 4.0" installer for modern OS versions like Windows 10 or 11. If your application requires it, you must ensure the application is running in (x86) to "see" the driver already on your system. The Modern Solution: Microsoft Access Database Engine (ACE)