Windows 7 - Taskbar - Pin or Unpin Program Links

Question

As in title, is there any Win32 API to do that?

Answer 1

Don't do this.

I'm 99% sure there isn't an official API for it, for exactly the same reason that there wasn't programmatic access to the old Start Menu's pin list.

In short, most users don't want programs putting junk in their favorites, quick launch, taskbar, etc. so Windows doesn't support you doing as such.