The NVR+ software can be working in trial version for hours, with some functions limitation, for example, can not cycle recording, stop recording after several hours, etc. The trial version software is for evaluation purpose only. If you want to install the software in real projects, please register software to ensure features availability and technical support. 

The Software support two registration modes: (you can choose one of them)

• By USB dongle key, which has included software license already;
  Benefits
  • Easier to use, no need to read device/card serial nubmer, no need to import license file.
  • No need to change USB dongle key even when you replace the IP device or DVR cards.
  Disadvantages
  • Each USB dongle has fixed number of license key, and can not expand it.
  • USB dongle key is a hardware component, it has shipping cost and delivery time.
• By license file, which is registered according to device serial number (no USB dongle will be required).
  Benefits
  • Easy to Get: reduce shipping fee & time
  • Flexiblity and Expandable
  Disadvantages
  • When the IP device or DVR card number has been chagned, you have to get the updated license file.