What are AutoIt and AutoItX?
  AutoIt v3 is a freeware BASIC-like scripting language designed for automating 
  the Windows GUI. It uses a combination of simulated keystrokes, mouse movement 
  and window/control manipulation in order to automate tasks in a way not possible 
  or reliable with other languages (e.g. VBScript and SendKeys).

  AutoItX is a DLL version of AutoIt v3 that provides a subset of the features 
  of AutoIt via an ActiveX/COM and DLL interface. This means that you can add 
  AutoIt-like features to your favourite scripting and programming languages, 
  e.g. VB, VBScript, Delphi, C, C++, Kixtart, and most other languages that 
  support the use of DLLs.

  AutoIt's home page is http://www.autoitscript.com, AutoIt can be downloaded from
  http://www.autoitscript.com/site/autoit/downloads/.
    
What is JAutoItX?
  1. JAutoItX is a java binding for AutoItX.
  2. Supported os:
     Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008/2008 R2, Windows 7, Windows 8 (desktop mode)
  3. JAutoItX tested under Windows XP SP3.
  4. Supported jdk:
     jdk 1.5 or later
  5. JAutoItX is released under Apache License 2.0.
  6. JAutoItX's home page is https://github.com/wangzhengbo/JAutoItX,
     you can download the compiled jar from https://sourceforge.net/projects/jautoitx,
     old versions can be downloaded from http://code.google.com/p/jautoitx/.