AutoIt is more of a scripting language than a full blown programming language, which fit me well when I wanted to wrap a command line application with a GUI.
I used AutoIt to create a UI wrapper which utilizes a command line tool.
My friend tried converting a video file to the Theora codec, and the only easy way I found of doing so was using a command line tool, but she didn’t cope well with the command line, so I created this simple UI which makes the arguments of the command line so much simpler to enter using the UI.
Another nice thing in Autoit is that it can be compiled to a tiny executable easily which is a big advantage from my side, so there is no need of bloated .net or jre libraries, just this less than a megabyte exe to run.
Thus I chose Autoit for the easy GUI creation and small executable build.