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USB Key Update (to a higher version)

Updated April 02, 2024

This article applies to:
  • Terrain 3D
  • Terrain Forestry
  • RoadEng Civil
  • RoadEng Forestry
  • Softree Optimal

Instructions to Reprogram USB keys for acess to an updated version of the Software 

Please follow the instructions below to remotely reprogram your RoadEng or Terrain Tools USB key: 

Step #1 Install (Update) Security Hardlock Drivers

If updating from Version 10 on same computer, then skip to Step #2

Fresh install (new computer:

 ​​​​Step #2 Start Email

  • Open your mail client
  • Start email addressed to
  • In the Subject line type in license # from the USB key

Step #3 Reprogram USB Key

  • Attach USB key. NOTE: Only 1 USB Key can be reprogrammed at a time
  • Download 
  • Unzip the executable
  • Click on FieldExUtil.exe to open the program
  • Make sure Hardware Key tab is selected and press “Get Locking Code”.
  • A long string of letters appears in top screen, as shown in the image below (code will vary):


  • Press the copy to clipboard icon
  • Paste string of letters into the email you started in Step #2
  • Press Send.

Softree will generate your return code and email it back to you with instructions.

Note: You can close the Field Exchange Utility while you wait for the new locking code. If you do close it, DO NOT press Get Locking Code again as it will generate a new code.