For some time I was wondering how to execute AutoIt code from a web browser. I made some solutions using IE.au3, but that's only one browser. Is there a way to execute AutoIt from ANY browser? There is one - custom protocols. So, I looked how to add one, and here it is - running AutoIt from any web browser.
AutoIt Protocol
Example (run install.au3 before!): 2+2 in a MsgBox Edit: you can't use this protocol in posts here, how sad
Have fun!