Problems with Microsoft Jet OLEDB on 64bit Windows?

If you have scenario like this:

  • In your C# / VB.NET application you are using Microsoft Access database (MDF file)
  • Target machines are 64 bit machines (Vista 64 or some of the Windows Operating System flavors
  • On target machines, where you plan to deploy solution, you installed Microsoft 2007 Office System Driver: Data Connectivity Components
  • And still, you are experiencing error like this:
System.InvalidOperationException: The 'Microsoft.Jet.OLEDB.4.0' provider is 
not registered on the local machine.

Check if your application is setup for any CPU (Properties / Build / Platform target) which is default. If that is the case, change it to x86 – at the moment, there are no 64bit drivers for Microsoft Office, so only 32bit applications will work as expected.

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