Help "?" button on titlebar?

Hi. I was just wondering, is there any extension or method that let's you add the 'help' button to the title bar?

Here's a screenshot off the web that points to it:

http://www.atlantiswordprocessor.com..._title_bar.png

Possibly the Kernel extension is capable to manipulate windows in this way:
All Sphax extensions in one place (12 in total with 2 never released before)

Thanks for the pointer Gustav! The Kernel extension does do the job.

Some notes for anyone who comes across this:
* The maximize/minimize buttons must be removed first.
1. Select the current window using the extension.
2. Alter with action "Windows Extended Styles" → "Context Help State"

I haven't worked out how, but there's probably a way to capture when it's pressed (for instance, to open a help program) but it was more of a curiosity thing if it was possible. :)