Mariusz Barczyk was the managing the DosBox ports, he's given up so far and told me that he didn't release version 0.65 because of odd behaviours with keyboards, i've notified him that that has been solved already in the OS4 (and every other port) by upgrading a plain text config file and that should have had been enough to import that config from any other archive. At the time he had five compiles and had to check which one was the genuine but he didn't update me yet (6 months have passed meanwhile) on the subject.