 <p>This is the Spotlight For Help search field, which is entirely controlled by the system. It automatically provides results from your application's Help Book and menu items. AFAIK you can't populate it "manually". It works automatically when you create a Help Book for your application.</p> <p>See <a href="http://developer.apple.com/library/mac/#documentation/Carbon/Conceptual/ProvidingUserAssitAppleHelp/user_help_concepts/apple_help_concepts.html#//apple_ref/doc/uid/TP30000903-CH205-BABBDDJC" rel="nofollow">Apple Help Concepts: The Help Menu</a>.</p>