Здравствуйте, Callisto, Вы писали:

C>ADO через драйвер Jet !

Да, только еще не забыть поставить BDE.
Из Q275561 для Jet4.0:

Paradox and dBASE
Read/write access to Paradox and dBASE data will be supported through the Borland Database Engine (BDE). Users who need to be able to update, as well as read Paradox and dBASE data, and users who need access to the most recent versions of Paradox and dBASE data, will need to obtain the BDE from a supplier other than Microsoft.

Users who do not have the BDE will still be able to import and export older versions of Paradox (version 5.0 and earlier) and dBASE (version 5.0 and earlier) data via the Microsoft Jet proprietary technology that has been shipped with earlier versions of Microsoft Access and the Microsoft Jet database engine.