Official website: http://www.softpedia.com/get/Programming/Components-Libraries/AutoItLibrary.shtml
csdn:http://download.csdn.net/detail/liuheng123456/6236097
Unzip the autoitlibrary downloaded above and then "very important" to open the cmd window as an administrator , and right-click to run as Administrator.
Use the command to locate your Autoitlibrary directory (available on the desktop) and then install it via the cmd command Python setup.py installation. You can also use PIP installation pip install Autoitlibrary, when I have been error, unable to install, there is a DLL file is always automatic, through the Python setup.py install can not be installed. Finally I restarted the computer, and it was successfully installed through the Python setup.py install. See the bag below.
Autoitlibrary installation Error (Robotframework) resolved