Error: Unresolved external '_HB_FUN_LETO_DIRECTORY'

[Numerabilis]

Hi, Elchs

I am trying to adapt my backup procedure with LETODBF.
I have to copy files from server to local to zip files, am I right? That´s what I understood from letobackup.prg
I got an error saying there is no LETO_DIRECTORY()

C:\BCC58\BIN\ilink32 @makefile.lnk
Turbo Incremental Link 5.69 Copyright (c) 1997-2005 Borland
Error: Unresolved external '_HB_FUN_LETO_DIRECTORY' referenced from C:\PROGRAMAS\CONTROLI\OBJ\GERENTE.OBJ

***I´m using xHarbour v1.2.3 + BCC 5.8