Ziphelp is a HTML-based cross-platform application help system
...It works inside an archive, with uncompressed folders or with HTML content loaded directly from a website. A Delphi desktop app may be deployed with local application help, uncompressed, zipped or embedded. A mobile or web application might not ship with local HTML content, but refer to an online version instead.
OmniHelp is a cross-platform, browser-independent, tri-pane help viewer built in pure JavaScript and CSS with HTML 4. Some functions (such as help embedding) may in the future be in Java, C, or C++; CSH is fully supported. All code is under the LGPL.
The DocML Viewer lets you browse a DocML file with a PHP/HTML interface similar to Javadoc. This allows development teams to easily access documentation across a network or from a website. Styles can be applied from a single CSS file. Visit http://www.docml.org for more details.
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