A file with the extension .AHK is a script file created using 'AutoHotkey'. The .AHK file contains a plain text file which acts essentially as a list of commands to be executed by AutoHotkey. AutoHotkey is a free open source utility created for windows. 'Hotkeys' is another name for keyboard short-cuts such as (Ctrl-Alt-Delete) used to access 'task manager'. A .AHK file is a custom script written to automate a chosen process (such as acessing a specific program) and associate it with a specific key, combination of keys, or mouse buttons for faster access.