Third Party LabVIEW Add-On Activation Does Not Work in LabVIEW 64-Bits

Updated Jan 24, 2020

Reported In


  • LabVIEW
  • Third Party Add-Ons

Operating System

  • Windows

Issue Details

After I activate a Third Party LabVIEW Add-on in LabVIEW 2018 64 bits, the add-on status in Third Party Add-on Activation Wizard is Invalid.


It is a known issue in LabVIEW 2017, 2018 and 2019 64 bits. In order to fix it, try the following steps:
  1. Uninstall the invalid toolkit from both 32 and 64 bits LabVIEW as described in Download & Manage LabVIEW Add-ons with VI Package Manager (VIPM)
  2. Make sure the *.lf file under <ProgramData>\National Instruments\Partners\<Invalid Addon>\Licenses manually deleted.
  3. Manually delete the Computer\HKEY_LOCAL_MACHINE\SOFTWARE\National Instruments\LabVIEW\<Version>\PartnerAddons\<Invalid Addon> folder in Windows registry.
  4. Replace the original one in <ProgramFiles>\National Instruments\LabVIEW Version\resource\Partners\RegisterAddon.exe with attachment.
  5. Reinstall the wished Third Party LabVIEW Add-on.
  6. Activate it from Third Party Add-on Activation Wizard.
This should activate the add-ons correctly and will allow to avoid this scenario in the future.

Additional Information

This issue will be fixed in LabVIEW 2019 SP1 64 bits.