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LICENSE: Updating a Floating License File (FLF)

Information in this article applies to:

  • C51 Version 8.00 and later
  • C166 Version 6.00 and later
  • C251 Version 3.60 and later
  • MDK-ARM Version 2.50 and later


I purchased and received an update to the Floating-User license our company uses and have a new Floating-User PSN. How do I update this?


When you update a Floating-User license, you will create a new Floating License File (FLF) for everyone to use. You do this the same way as described in the Licensing User's Guide, but you cannot install this new FLF in the same location as the old one, because the installer will not replace an old FLF with a new one. So the folder you use must not contain an FLF with the same file name as the product you are installing.

Once the FLF is installed successfully, you may inform the product users as to the new location of the FLF, so they can request updated LICs for their PCs.

Remove the old FLF after the last user switched to the new FLF.


Last Reviewed: Monday, August 10, 2015

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