http://bugs.winehq.org/show_bug.cgi?id=32225
--- Comment #4 from Daniel Jelinski djelinski1@gmail.com 2012-11-16 02:38:59 CST --- (In reply to comment #3)
You had odbc32 set to native,builtin. When loading native failed, it fell back to wine's builtin version. As you found, setting it to native only enables your desired behavior.
Thanks for explanation. In that case, shouldn't winetricks set installed libraries to native only?