With ADO.net 3.5 you no longer need to use/install the Jet driver for working with an Access database.

You can use this connection string(reads Access 2007 and below).

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\myFolder\myAccess2007file.accdb;Persist Security Info=False;

Thanks to ADO.NET 3.5 Cookbook, 2nd Edition(if I were smarter I would have used my amazon correspondent link)

And ConnectionStrings.com