| File extension | .chm |
| Category | eBook File |
| Description | The CHM file format was developed by Microsoft and first released along with Windows 98 and the format continues to be supported. This file format superseded WinHelp. CHM files grew in popularity due to the fact that they are fully compatible with a web browser which can be found on all computers. The vulnerability of this file type has been highlighted widely due to the ability for certain controls to be executed by the file. |
| Actions |
Convert CHM file
View other ebook file formats |
| Technical Details | A .chm file comprises of a number of HTML pages and an Index. The format supports 28 different language types. The file provides functionality such as compression, merge and search. Just like a HTML page, the file can be composed of a variety of tags and images to enrich the content of the help files. |
| Associated programs |
Beyond CHM
Internet Explorer
Microsoft Reader
Mozilla Firefox |
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| Developed by |
Microsoft |
| MIME type |
application/vnd.ms-htmlhelp |
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| Useful links |
More Information on CHM
Technical Release Information on CHM
Convert CHM file |
