How to get started with developing Internet Explorer extensions?

Question

Does anyone here have experience with/in developing IE extensions that can share their knowledge? This would include code samples, or links to good ones, or documentation on

Answer 1

The question is from 2013, now it's 2020, but it may be helpful for future visitors.

I tried to implement @Miguel Angelo's answer, it didn't worked at the beginning.

There still some settings that you be defined.

on internet explorer (I'm using IE-11) go to Tools-->Internet Options-->Advanced:

Also see this SO question and this example from github