Tested this out before my sub ran out. It auto replies the way I want it to, but I got to thinking about whisper spam. For example, player 1 whispers me and gets my auto reply. Then moments later another player whispers me and gets my auto reply. Will player 1 get an auto reply from me every time someone new whispers me with this code? I'm hoping that's not the case and that it will only auto reply to the last person that sent me a whisper. I hope that makes sense.
Code:
local EventFrame=CreateFrame("Frame")
EventFrame:RegisterEvent("CHAT_MSG_WHISPER")
EventFrame:SetScript("OnEvent",function(self,event,msg,sender,...)
SendChatMessage("AUTO REPLY MESSAGE HERE","WHISPER",nil,sender)
end)