I was finally able to get it to work by downloading the MySQL Server 5.5 (instead of 5.6) and the MySQL Connector/ODBC 5.1 (instead of 5.2). I then made the input string simply "DSN=<dsn_name>;" and I configured the DSN through C:\Windows\SysWOW64\odbcad.exe since it was a 32-bit DSN on a 64-bit machine.