INTEGRATED uses Sentinel Superpro hardware dongles from SafeNet to enforce the licence. These are parallel port or USB devices which keep track of program ID and number of programs being run. Users thus have the freedom to install the software on as many computers as they wish. The software will only run at any given time on the computer which is enabled by the dongle. Depending on your needs, you may choose a stand-alone dongle which you physically move from computer to computer to change which has the licence, or you may choose a network dongle where the dongle is installed on a single computer which controls the licence useage on other computers.