Troubles to make visible MDAC 2.6 or 2.7

[Hammer]

connection string to access to an mdb:
------------------------------
OleDbConnection thisConnection =
new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:\Programmi\Microsoft Office\Office\Samples\northwind.mdb");

thisConnection.Open();


Once it opens the connection I get this exception:

"Additional information: 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."

The problem is that I installed MDAC 2.6 but even after that the
application returns me the same exception.

Why it can't see MDAC 2.6 ???

Thank you for your help.

 

[Scott M.]

Typically, when you install the .NET Framework, MDAC 2.7 is automatically
installed as part of the preliminary Windows Components Update that runs
before the Framework installs.

If you have installed a version of MDAC since installing .NET, you may have
overritten something.