ADOX.Catalog cat=new ADOX.Catalog();
            ADODB.Connection conn = new ADODB.Connection();
            conn.ConnectionString = @"PROVIDER=Microsoft.ACE.OLEDB.12.0;DATA SOURCE=c:\tmp\db.accdb;PERSIST SECURITY INFO=FALSE";
            conn.Open();
            cat.ActiveConnection = conn;
            ADOX.Table tbl = cat.Tables["tbl"];
            ADOX.Property prp=  tbl.Properties["Jet OLEDB:Table Hidden In Access"];
            prp.Value = true;
            conn.Close();