Additional concurrent network user license for Time Vision Plus. N.B. Time Vision must be upgraded to Time Vision Plus to allow network users. With this TimeVision Plus can be installed on several PCs and can be used concurrently up to the number of purchased licenses, including the license for the initial package. So if you purchase 2 Network User Licenses and installed TimeVision Plus on 5 PCs, you would be able to use it on any 3 at the same time.