It seems that your client uses FoxFS, so for encryption make use of batch files within FR_Nova directory(e.g: create_by_name.bat)

I think he did not understand me haha I am looking for who knows how to do that encryption I have my client but in eix and epk and I want to pass it to that encryption mode nose if I explain myself well my English is not so good

I would like to know who in the community know how to do that type of client encryption because from what I understand it is much better and at the same time has more security when it is not stolen

You should re-read Raffael's post and try to find FoxFS and implement it in your source.