Use Caps Lock as Escape and Control on Windows(quite useful when using Vim on Windows)

caps.ahk

/* Following script enables mappings for Escape and Caps Lock. 
   This has been shamelessly copied from: http://vim.wikia.com
   Source: http://vim.wikia.com/wiki/Map_caps_lock_to_escape_in_Windows#Use_the_Caps_Lock_key_as_Ctrl
*/

SetCapsLockState Off
state:=false
; Use Esc as CapsLock
/* Uncomment the mapping if Caps Lock functionality is desired and you are okay with using Escape as Caps Lock  
Esc::
 state:= not state
 if (state) {
	 SetCapsLockState On
 } else {
	 SetCapsLockState Off
 }
 Return
*/
; Use Caps Lock as Control when pressed and held
; Use Caps Lock as Escape when pressed and released quickly(within 1 second)
; This mapping nicely when using Vim 
*CapsLock::
	Send {LControl down}
	Return
*CapsLock up::
	Send {LControl Up}
	if (A_PriorKey=="CapsLock"){
		if (A_TimeSincePriorHotkey < 1000)
			Suspend On
			Send, {Esc}
			Suspend Off
	}
	Return