Timed Key Spammer sends key strokes to an active window on a timed basis, using the WinApi function: PostMessage. It allows you to choose between Text or Keys, to be sent, such as Up/Down, CTRL, ALT, Shift, or Enter. It does allow to load and save keys lists and can be used with any game/program.
It can be used to automatically buff yourself, keep yourself from going AFK, or set off macros which are key bound.
This could be used to spam messages in chat, however use of this function can get you banned/suspended/silenced. Use with caution and only use to spam guild messages or trade chat spam.