I can't imagine how that can be enforced. The only thing that .Net knows is that you're access OLEDB. After that, it's up to the provider. It's possible that the data tools Visual Studio Express only support SQL Server and Access, but .Net itself does not.

>I read somewhere that only SQLServer and Access backends can be accessed in vb.net 2010 express.
>
>I donloaded the vfpoldb pack and tried this :
>
>

>Module modTest
>    Public Sub TestPluczConnection()
>        Dim oConn As New OleDbConnection("provider=vfpoledb.1;datasource=\\sql1pluc\data\plucz\plucz.DBC")
>        oConn.Open()
>    End Sub
>End Module
>

>
>... and got "feature is not available" thrown at me.
>
>Guess I read right then.