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Date of registration: May 9th 2016

Posts: 1


Monday, May 9th 2016, 12:43pm

FAT licence

do you know current state of FAT licencing by Microsoft? In the past Microsoft licenced FAT32 system. Today I found on Microsoft web only information about exFAT licence requirment.
Thanks for info, Zdenek

SEGGER - Marius

Super Moderator

Date of registration: Aug 10th 2011

Posts: 32


Tuesday, May 10th 2016, 5:24pm

Hello Zdenek,

Only the handling of long file names is patented by Microsoft. According to some of these patents are still valid, especially in Europe.
I recommend you to get in contact directly with Microsoft in order to evaluate these legal issues.
No licensing is required if your application uses file names in 8.3 format.

Best regards,