>does exist a utility that rebuilds corrupt tables and indexes out of
date???

download tutility.exe from inprise.com.
Or, delete the index files, and create them manually

Try Table Scanner. Current version (Beta 3.00-Build 1.08) is Shareware
(available for download from http://www.bhnet.com.br/~demian/ ), but I think
Delphi Super Page (http://www.sunsite.icm.edu.pl/delphi/ ) still have
version 2.02 (which is Freeware).

Table Scanner is not an utility to distribute with your application. You use
Table Scanner to generate source code to add to your application, so your
application can 'take care' of its tables (fix/pack/reindex/etceteras).