Update 3-15-06: Fixed PlaySound error so that sounds will play properly.
The purpose of this addon is to provide a very simple addon to create automatic responses to chat messages you recieve. You have the option of replying through whisper, say, emote or you can simply play a sound file to alert you.
All it does is do a simple string comparison for the chat type you specify. So, for example, you could make check all your whispers for "thanks" and auto-reply with "no problem" if you desired. Or you could have it check all channels for "enchant" or your name and play a sound if anyone typed that in a message.
Put it in your addons directory and then open up the AutoMsg.lua file to edit. I may add the ability to update it via slash commands at a future date, but right now you just need to manually add them. The instructions are pretty straightforward and right at the top of the lua. You don't need an editor to make changes, just use Notepad.