AP Help

About AP Help

Help file: .h1s -- Proprietary file format requires SDK to compile.
Runtime: Windows Vista OS

Microsoft AP Help is the Help engine created for the Microsoft Windows Vista operating system help. Vista, code-named "Longhorn", was launched for public use at January 2007. There were thoughts it could become the next general help engine but this didn't eventuate. I believe it was a variant of MS Help 2.

Note that authoring and creating .H1s help files is for Microsoft in-house and OEM's use only (eg. Hardware manufacturers who need to integrate documentation into Windows Vista help).
Help source uses MAML XML (Microsoft Authoring Markup Language).  

Information & Articles


  • 2007-01-29 - Windows Vista + AP Help 1.0
  • 2007-01-17 - Business Desktop Deployment 2007 (includes AP Help 1.x SDK)