Effective July 2002, all computers used within ULVAC equipment and used by ULVAC field engineer are protected by anti-virus software. Equipment computers are protected by the latest virus definition files available at the time of shipment. Computers used by field engineer have their virus definition files updated on a regular basis. If requested, ULVAC will investigate the possibility of installing anti-virus software on existing ULVAC equipment. Software compatibility will need to be determined on a case by case basis.