Hello Thierry,
Thanks for supplying the NC code and screen shots of the errors. It seems that this is a very basic control and does not support a lot of the standard G-codes. You will be better off using the 'wincnc.cps' post processor for your machine, as it does not output a lot of the codes that your controller is complaining about. You may find that it still does not like some of the codes. You can easily comment out the lines in the post that output any codes that your controller does not like.
For example, if it does not like the G22 code output by this post, you can comment out the following lines in the onOpen function.
//writeBlock(gUnitModal.format(20));
...
//writeBlock(gUnitModal.format(22));

Bob Schultz
Sr. Post Processor Developer