>This is the first time I am using .dbc ,
>so I have some doubts
>
>Is it necessary to backup .dbc everytime I do a backup ?
>
>Or can I backup only dbf , cdx, fpt, and sometimes dbc ?
>
>My doubt is if dbc changes its structure or not, as customer add data to his tables
>
>( am I afraid my software will not be able to zip .dbc all the time)
>
>
>Moises

DBC files are usually small. Backup them up as well. All DB* files.