How can i send keystrokes to an application in background

i need something like a macro that can send keystrokes to an application in background and loop the sending in delay of 2 minutes or something... Any1 have an idea how can i do this or where can i download such program?

download autoit and use

winsettitle("Archlord", "", "what ever you want")
controlsend("what ever you want", "", "", "3")
controlsend("what ever you want", "", "", "4")
controlsend("what ever you want", "", "", "5")
controlsend("what ever you want", "", "", "6")
controlsend("what ever you want", "", "", "7")
controlsend("what ever you want", "", "", "8")

Ill defo try it when i come back. I hope the archlord cleint can be minimized of course ;p

i hope you have some programming/scripting experience... otherwise it might seem like japanesse to you. autoit is great though, fairly simple to learn and execute. good luck =]