DirectODBC is a set of components that allows direct access to the ODBC API. It requires no runtime DLLs apart from ODBC itself, and any DLLs the driver requires.  It is not meant to be a drop-in replacement for TTable, TQuery etc.  Instead, it is more in the spirit of DBExpress, though it predates Delphi 6. Documentation is not available yet, but if you're brave, you can try it out now.

Details 
The DirectODBC package file ODBC.dpk is in Delphi 6 format. If you need to use it for other versions, please create it yourself and include the files (sorry).  

Usage 
Sorry, not done yet.

Download 
A zip file containing all sources is available here.