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Line 79: Help is delivered as a binary file with the .chm extension. It contains a set of HTML files, a [[hyperlink]]ed table of contents, and an index file. The file format has been reverse-engineered and documentation of it is freely available.<ref>{{cite web \|last=Wise \|first=Paul \|last2=Wing \|first2=Jed \|title=Unofficial (Preliminary) HTML Help Specification \|url=http://www.nongnu.org/chmspec/latest/index.html \|year=2005 \|accessdate=15 August 2012 }}</ref><ref>{{cite web \|last=Palade \|first=Alexandru \|title=Archive::Chm \|url=https://metacpan.org/pod/Archive::Chm \|year=2005 \|accessdate=22 July 2014 }}</ref> The file starts with bytes "ITSF" (in [[ASCII]]), for "Info-Tech Storage Format", which is the internal name given by Microsoft to the generic storage file format used ~~in with~~for CHM files.<ref>{{Cite web\|title=Virus Bulletin :: Chamber of horrors\|url=https://www.virusbulletin.com/virusbulletin/2006/10/chamber-horrors/\|access-date=2022-01-05\|website=www.virusbulletin.com}}</ref> CHM files support the following features:

Microsoft Compiled HTML Help: Difference between revisions