tiOPF is an Open Source Object Persistance Framework for Delphi. However there was no support for MySQL. Zeos was already experimentaly included, but only for firebird. Although it's very preliminary code with almost no testing done, the basics of a persistance layer for MySQL in tiOPF has now been created by yours truly. Have a look in the binary newsgroup of tiOPF. I still have to verify the different fieldtypes returned by Zeoslib. The tiOPF demo's seems work at first glance... Feel to test it out.