# Microsoft Compiled HTML Help

> proprietary online help format, consisting of multiple HTML pages compressed into a binary file with the .chm extension

**Wikidata**: [Q1023647](https://www.wikidata.org/wiki/Q1023647)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Microsoft_Compiled_HTML_Help)  
**Source**: https://4ort.xyz/entity/microsoft-compiled-html-help


## References

1. Freebase Data Dumps. 2013
2. [Source](https://www.iana.org/assignments/media-types/application/vnd.ms-htmlhelp)
3. [TrID](https://mark0.net/soft-tridscan-e.html)
4. [About HTML Help URLs (Windows)](https://msdn.microsoft.com/en-us/library/windows/desktop/ms524236(v=vs.85).aspx)