Upgrade to the latest version of Acuity Pro from any previous version. You must have a previous license on file with us before an upgrade can be ordered. The number of upgrades cannot exceed the number of licenses you have previously purchased. Additional licenses are available at model number AP164. Included with the upgrade is an installation CD, 1 remote control and receiver, 1 USB license key, an HOTV card, 1 mouse pad and 1 red/blue pair of glasses.