MDAC Problem

[InvalidOperationException: The .Net Data OLE DB Provider(System.Data.OleDb) requires Microsoft Data Access Components(MDAC) version 2.6 or later. Version 2.50.4403.8 was found currently installed.]

I'm getting this error however, I have MDAC 2.8 installed. I'm guessing one of the .dll's did not get updated.

What .dll file is responsible for this (.Net Data OLE DB Provider)?

Thanks,
Kevin.NET OleDB Provider is not part of MDAC, but it uses MDAC 2.7. UseMDAC Utility component checker tool to check correct MDAC installation.