Error 500 with ‘Microsoft.Jet.OLEDB.4.0’ under Plesk

In transferring a client website to a Plesk managed site, I got the following message

The ‘Microsoft.Jet.OLEDB.4.0’ provider is not registered on the local machine.

Message when accessing a page with an Access database.

Symptoms

• Website hosted on Plesk does not work:Internal Server Error 500The ‘Microsoft.Jet.OLEDB.4.0’ provider is not registered on the local machine.
• While accessing website directly from the server shows:Could not load file or assembly ‘XXXXX’ or one of its dependenciesAssembly binding logging is turned OFF
• Enabled Failed request tracing shows the following:
  Provider cannot be found. It may not be properly installed.ModuleName IsapiModule
  Notification EXECUTE_REQUEST_HANDLER
  HttpStatus 500
  HttpReason Internal Server ErrorThe requested resource is in use (0x800700aa)

Cause

32-bit application mode is disabled in application pool settings.

Resolution

1. Log in to Plesk
2. Go to Domains > example.com > Dedicated IIS Application Pool for Website
3. Check the checkbox Enable 32-bit applications and click OK

• Author
• Recent Posts

Follow me

Paul Bergman

CEO at Tracc Development, Inc.

Paul Bergman runs a business strategy and cybersecurity consulting company in San Diego. He is also CEO of a mentoring non-profit in San Diego, Lamp of Learning. He writes on cybersecurity and board management for both corporate and nonprofit boards.

Follow me

Latest posts by Paul Bergman (see all)

• The Imperative for Cyber Talent on Corporate Boards - March 29, 2024
• Talking CMMC preparation - March 12, 2024
• Protecting Your Business: Strategies to Combat DNS Attacks - February 20, 2024