Free Online Library Of Help Files.
Read help files in convenient way.
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There are a lot of paid software tools which allow you to see CHM help files as HTML pages. We created this site to allow you view help files in convenient way for free. We believe that this site will be especially useful for Linux, Mac and other non-Windows users which can not view CHM files using their OS.
We regularly update this site. If you can not find help file you need just send us e-mail and we will add it. Our e-mail: firstname.lastname@example.org
Microsoft Compiled HTML Help
From Wikipedia, the free encyclopedia
Microsoft Compiled HTML Help is a proprietary format for online help files, developed by Microsoft and first released in 1997 as a successor to the Microsoft WinHelp format. It was first introduced with the release of Windows 98, and is still supported and distributed through Windows XP and Vista platforms.
HTML Help files are made with help authoring tools. Microsoft ships the Help Workshop with supported versions of Microsoft Windows and makes the tool available for free download. There are also a lot of third-party help authoring tools available.
The Microsoft Reader .LIT file format is basically a modification of the HTML Help CHM format.
In 2002, Microsoft announced some security risks associated with the .CHM format, as well as some security bulletins and patches . They have since announced their intentions not to develop the .CHM format further, and will be moving to a new generation of Windows Help called Microsoft Assistance Markup Language in the Windows Vista operating system.
A CHM help file has a ".chm" extension. It has a set of web pages written in a subset of HTML and a hyperlinked table of contents. CHM format is optimized for reading, as files are heavily indexed. All files are compressed together with LZX compression. Most CHM browsers have the capability to display a table of contents outside of the body text of the help file.
The file starts with bytes "ITSF" (in ASCII), for "Info-Tech Storage Format". The format has been partially reverse engineered and there are container and internal files specifications available.
On Windows computers, this help file can be compiled using hhc.exe, which is distributed at no charge with the HTML Help Workshop.
There are some open source tools which can read and explore these files (see for example xCHM, KchmViewer, GnoCHM, Chmox for OS X, Chamonix for OS X, Help Explorer Viewer, or the Firefox add-on CHM Reader), but they lack various features of the Microsoft Windows tools, most importantly a write support.
This format was originally intended only for encoding help files, but other uses have since been found. It is very handy for packing saved HTML pages in one compact and browsable archive and for creating compact e-books. Some people use it to keep personal notes, because it can organize them in an ordered hierarchical table and allows quick text searching.
Extracting to HTML
On Windows, a CHM file can be extracted to plain HTML with the command:
hh.exe -decompile extracted filename.chm
This will decompress all files embedded in filename.chm to folder extracted.
or by using HTML Help Workshop.
On Windows, as a hack, select the topmost Topic, right-click and select Print. On the popup dialog, select "Print this heading and all subtopics.", click OK. Before selecting a printer, look in %HOMEPATH%\Local Settings\Temp for a file named ~hh*.htm. This is the concatinated HTML. The image reference will refer back to the .chm file at the time of the "print".
On Linux systems which use apt as a packaging tool, a CHM file is extracted to plain HTML with (first command is for a Debian based OS)
$ sudo apt-get install libchm-bin
$ extract_chmLib tero.chm tero/
Another useful set of tools for CHM files in non-Windows environments is the CHM Tools Package. It's available as source code, and includes a program, chmdump, which extracts the HTML from a CHM file into a separate directory.
It's also available for Mac OS X via MacPorts.
If MacPorts is installed on your system, you can type:
$ sudo port install chmdump
at a Terminal prompt to install the package. You can then extract a CHM file with:
$ chmdump chmfile.chm outdir
Some CHM files behave poorly under IE7. Printing Topics will crash the CHM viewer on malformed HTML.
If you want your help file to be removed or added please send e-mail to email@example.com