MySQL Administrator :: Mysql Administrator error "Could not find settings"

This
happens because MySQL Administrator cannot find the location of your My.ini file. To correct this, go to Control Panel->Administrative Tools->Services and check the Properties entry (right-mouse click) against MySQL.

改为如下

"C:/mysql/bin/mysqld.exe"
--defaults-file="C:/WINDOWS/MY.INI" MySQL

修改的方法是通过注册表：

HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/MySQL/ImagePath

You need to modify the key to read as above, including the quotes.

Stop and restart the MySQL service, and MySQL Administrator should then work correctly.

出处：http://forums.mysql.com/read.php?34,128259,128297#msg-128297