pues ya probe con lo del MDAC y em salio esto
MDAC 2.8 RTM is incompatible with this version of Windows. All of its features are currently part of Windows.
y mi conexion es esta:
Cita: Set conn = Server.CreateObject("ADODB.Connection")
Set db = Server.CreateObject("ADODB.Recordset")
conn.Open "Driver={Microsoft Access Driver (*.mdb)}; " & "Dbq=" & Server.MapPath("base.mdb")