Dim objConn As New OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0; data source=" & Server.MapPath("mdb-database/tuo_db.mdb"))

Dim objConn As New OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0; data source=" & Server.MapPath("../../mdb-database/tuo_db.mdb"))