Problems upgrading MySQL application from Delphi 2006 to 2010

I upgraded my Delphi to 2010 version and I tried to open and run application written in Delphi 2006. The app is using mysql by dbexpress with libmysql.dll and a second driver found somewhere on the Internet.

I can't run it on 2010. I'm always getting "missing libmysql.dll library". I tried to get new version of it but it didn't help. Copying this library into almost all system directories didn't help.开发者_开发技巧

I'm out of any ideas what to do, how do I connect to database :(

It's most probably a unicode problem. PChar is no longer a pointer to an ansistring, but a pointer to a unicodestring. Try and upgrade the dbexpress driver. I don't mean the dll, but the dbexpress wrapper code. I'd need a little more information to help further though.

check you have dbxmys.dll available to your app too (in the exe dir or on the path)