Convert files to and from chm online
Compiled HTML Help
CHM (Compiled HTML Help) is a proprietary file format developed by Microsoft for distributing documentation and help files on Windows systems. Introduced in 1997, CHM uses HTML as its core markup language and compresses its content for optimized loading and navigation. The compiled nature allows indexing and searchability within large help manuals. CHM files integrate seamlessly with help features in Windows applications via standardized API calls. They display content through a navigational framework with tabs, index, search, and zoom capabilities. The .chm file extension identifies the CHM format. It rose to popularity for delivering searchable software manuals and documentation bundled with programs. However, security concerns led Microsoft to restrict CHM file usage. Though proprietary, CHM demonstrated early innovation in packaging web content for offline help systems.
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