(LMS1) Installing License Manager 1.29.1

Technical Note 14255



9/24/2020 1:03 PM

Note: - This applies to legacy versions of IAR Embedded Workbench (2013 and older) which used License Management System version 1 (LMS1).


This technical note gives advice on installing version 1.29.1 of the License Manager.


  • An IAR product version using LMS1.
  • A physical computer with Windows 7 or an older Windows system.

Related technical notes:


When installing a LMS1 based version of the Embedded Workbench, make sure to use version 1.29.1 of the IAR License Manager.

Download latest version

Download version 1.29.1 of the IAR License Manager from this link: LicMan 1.29.1.

Installation instructions

  • Unpack the zip file, which contains licman.exe and support files.
  • Replace the existing licman.exe on your PC, normally located in C:\Program Files\Common Files\IAR Systems\License\Utilities
  • Place the support files also in that directory.
  • Finally, run the vcredist_x86.exe (has just been copied) in order to get the Microsoft distributable .dll files installed at the correct locations.

Update the dongle driver

If the license uses a dongle, then install the latest version tested with LMS1:

Note for licenses ‘locked to Transfer’

Note that when performing an LMS1 ‘License Transfer’, both PC’s must use the same version of licman.exe.

Note for modern Windows systems:

IAR product versions with LMS1 might work on Windows 8 and newer:

  • LMS1 is not tested on Windows 8 and newer, so this usage is unsupported.
  • Use License Manager 1.29.1 and dongle driver 7.5.2.


Using a LMS1 based version older that the Windows System in use, often causes problems.

Updating to the latest License Manager 1.xx solves several such problems

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