using EBD ODBC to access mysql successfully. But failure to run the application on another pc without installed Delphi. How to do ? Thanks.

If you do not need multi-tire, I suggest you to use ZEOS to access MySQL, It is much more faster and more stable. Also, you do not need to install any other thing except that libmysql.dll from mysql. If you choose to use Zeos 5.4, you can also use directsql and even that libmysql.dll is not needed. Also, the speed is even more faster ! You can have a look on my artical on Delphi MySQL. Although it is mainly on dbexpress, it also talk about ODBC BDE and Zeos at the end. http://delphi.ktop.com.tw/topic.php?TOPIC_ID=27168 If you really need ODBC BDE, then you have to use a install program such as installshield (bundled with Delphi) or inno setup The following topic give a good explanation on that : http://delphi.ktop.com.tw/topic.php?topic_id=29951

Thanks, Justmade. It works now by using Inno Setup tools accroding the instructions at http://www.jrsoftware.org/ishowto.phtml?a=bde (Installing BDE (Borland Database Engine)) BTW, does ZEOS support C/S ?