Based on the Rich Text Format, this was the industry standard for Windows 3.1 and Windows 95/NT. The popular Windows Help program (WinHlp32.exe) was included with all Windows operating systems from Windows 3.0 until the Windows XP operating system. However, the help engine is not included with Windows Vista and is only available as a download.[1]
Also known as Microsoft Compiled HTML Help (the name of its file format), it based on HTML and other data such as images and JavaScript. HTML Help 1.0 was released in 1997. In 2006, it was available from Microsoft as HTML Help 1.4.
In 2001, Microsoft announced plans for a wide release of HTML Help 2.0, which came to be called Microsoft Help 2. This platform was developed by Microsoft and shipped in 2002 as the help format for Visual Studio .NET, MSDN Library and TechNet products, but Microsoft announced it had cancelled plans to make the format publicly available. Microsoft Help 2 was also used as the help format in Office 2007.
Assistance Platform Help is based on Microsoft Assistance Markup Language. It is the format developed for and shipped with Windows Vista. It will not be made publicly available as an authoring platform for other software vendors, but will be used by Microsoft, OEMs and certain corporate users. Version 2.0 of the Assistance Platform Help engine is currently on hold[when?]
Other platforms
Platform name
Description
HelpConsole (local HTML files or web-based)
IIS based system, with a standard navigation tree and content area, viewable with a web browser, supports JS, Flash (now deprecated), HTML5, Embedded presentations etc., Since it is web-based, it works on Windows, Linux, and virtually all other Operating Systems.
