Imports System.Data.OleDb
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim connetionString As String
        Dim oledbCnn As OleDbConnection
        Dim oledbAdapter As OleDbDataAdapter
        Dim ds As New DataSet
        Dim sql As String
        Dim i As Integer

        connetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Your mdb filename;"
        sql = "Your SQL Statement Here like Select * from product"

        oledbCnn = New OleDbConnection(connetionString)
        Try
            oledbCnn.Open()
            oledbAdapter = New OleDbDataAdapter(sql, oledbCnn)
            oledbAdapter.Fill(ds)
            For i = 0 To ds.Tables(0).Rows.Count - 1
                MsgBox(ds.Tables(0).Rows(i).Item(0) & "  --  " &  ds.Tables(0).Rows(i).Item(1))
            Next
            oledbAdapter.Dispose()
            oledbCnn.Close()
        Catch ex As Exception
            MsgBox("Can not open connection ! ")
        End Try
    End Sub
End Class