An instrument gage assembly includes an applique and at least one gage mechanism mounted to a rear surface of the applique. A groove is formed in the interlayer insulator film to longitudinally extend along a word line which constitutes the control gate for a plurality of memory cells arranged in one line. Effectiveness is dependent on the factors; location technology, IMI, and movement algorithm; and, the interaction between these three factors. The method further includes identifying the electronic message as an unsolicited message if the generated checksum matches one of the database checksums.