Hello Ricky,
Thank you for your answer.
I succeeded in executing uniflash by the command line in Windows.
When I launch it, I see the following text:
***** Texas Instruments Universal Flash Programmer *****
<START: 17:56:15 GMT+0100 (CET)>
> Configuring the Flash Programmer with the given configuration ...
> Flash Manager is configured for the following part: TMS320C28345
SEVERE: Option not found
Then, it is written that Option is not found is the file uniFlash_main.js#243
Thank you for your help.