Microsoft Compiled HTML Help - Wikipedia (FazBrowse)

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Microsoft Compiled HTML Help

Filename extension

.chm

Internet media type

Microsoft HTML Help Executable
Other names	hh.exe
Developer	Microsoft
Included with	Microsoft Windows
Predecessor	Microsoft WinHelp
Successor	Microsoft Help 2
Type	Help system

Microsoft Compiled HTML Help (CHM) is a Microsoft proprietary online help format, consisting of a collection of HTML pages, an index and other navigation tools. The files are compressed and deployed in a binary format with the extension .CHM. The format was intended to succeed Microsoft WinHelp.

Although the format was designed by Microsoft, it has been successfully reverse-engineered and is now supported by many document viewers.

invent.kde.org/graphics/okular

Uses hh.exe on Windows

Calibre

Windows, macOS, Linux

ulduzsoft.com/kchmviewer/

KCHM

Linux, BSD, Solaris

KCHM on SourceForge

CHMPane

Windows, macOS, Linux

CHMPane on SourceForge