WoW Keyboard Helper (WKH) is an app that helps you to avoid the WoW Client v4.3.0 (Mac) bug with keyboard layouts.

As you know, WoW Client v4.3.0 (Mac) has a bug that discomforts normal gaming. If you switch your keyboard layout to anything but U.S. layout (in-game chatting in Russian, for example) then you can't control your character, because outside of text fields the keys you press are interpreted wrong.

WoW Keyboard Helper is a keyboard layout switcher that will affect only WoW Client's text fields (chat, search, auction etc).

So, you set your system keyboard layout to U.S. (thus you'll be able to control your character). And when typing in WoW Client text fields, you use WKH to switch between keyboard layouts.

For the app to work, you must enable "Enable access for assistive devices" option in your System Preferences — Universal Access:

Any layout listed in your system's keyboard layout switcher menu.

WoW Keyboard Helper starts as daemon and places a pretty icon into the system status bar. While the WoW Client is running, WKH monitors keyboard events queue and replaces symbols according to selected keyboard layout.

Surprisingly, this affects text fields only, so if you are not currently chatting or typing text in the WoW Client — pressed keys will be recognized according to your system selected keyboard layout (you should leave the U.S. layout, remember?)

No, it doesn't. WoW Keyboard Helper does not change WoW Client's files or memory. It changes nothing in WoW Client.

The only thing WKH does is modify pressed symbols, e.g. english "a" to russian "ф" (a/ф share one physical key).

It's easy. Look at this:

The icon on the right is a system layout keyboard switcher (you should leave U.S. here, remember?). The one on the left is WoW Keyboard Helper.

The icon's menu lists all your installed keyboard layouts:

You can also change WKH's keyboard layouts with a hotkey, e.g. Opt+Space:

You can get the app from the Mac App Store.

Feel free to send mail to support@wowkeyboardhelper.com