What is a CHM help file?
The CHM file format represents Microsoft HTML help file that consists of a collection of HTML pages. It provides an index for quick accessing the topics and navigation to different parts of the help document. The CHM file can be searched for contents via the provided search option.
What is CHM software?
CHM (Microsoft Compiled HTML Help) is the extension used by Windows help files and other files such as e-books. Cybercriminals have been known to abuse vulnerabilities in CHM files to execute arbitrary code.