Microsoft Help 2
| Microsoft Help 2 | |
|---|---|
| Developer(s) | Microsoft | 
| Operating system | Microsoft Windows | 
| Predecessor | Microsoft Compiled HTML Help | 
| Successor | Microsoft Help Viewer | 
| Type | Help system | 
Microsoft Help 2.x is a proprietary format for online help files, developed by Microsoft and first released in 2001 as a help system for Visual Studio .NET (2002) and MSDN Library.
Microsoft Help 2.x is the help engine used in Microsoft Visual Studio 2002/2003/2005/2008 and Office 2007 and Office 2010. Help files are made with the Help 2.0 Workshop (VSHIK), a help authoring tool. The default viewer for Help 2.x files is Microsoft Document Explorer, and there are several third-party viewers available such as H2Viewer and Help Explorer Viewer.
Visual Studio 2010 uses a new help engine, Microsoft Help Viewer.