I'm afraid, you'll have to restore it from backup.

>Thanks for your reply.
>
>Let me explain the problem.
>
>This morning when I lit the it schemes; the windows found an error in the hard disk and then you executes the chkdsk.
>
>While the program was executed they were several errors in some sectors of the disk.
>
>Because one of those errors was exactly located with a called file datos.dtc and this doesn't allow him to open the database.
>
>How can I solve this problem?