Opening/Listing am Access database using SP.Net

Hello. When i run the following code:
<%@ import namespace="system.data.oleDb" %>
<Script runat="server">
Sub page_load
Dim dbconn as oledbConnection
Dim dbCMD as oleDbCommand
Dim dtr as oledbdatareader
' Server.MapPath("[relative path to your database]")
dbConn = New oledbConnection ("PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA Source=" & server.MapPath("/test.mdb"))
dbConn.open()
dbCMD = new oleDbCommand ("select * from tblContact",dbconn)
dtr = dbCMD.executereader()

While dtr.read()
response.write ("<li>")
response.write (dtr(0) & "---" & dtr(1))
End while
dtr.close()
dbConn.close()
End Sub
</Script>

It returns me the folloiing errors:

Erro de servidor na aplicação '/'.
O fornecedor 'Microsoft.Jet.OLEDB.4.0' não está registado no computador local.

I dont know how to fix it. Can you please help? Thanks. Bruno.