MQL4 Documentation and MQL4 Book Download

chm is a file, buy no one's created one for Since February 3, 2014 (Build 600) because it's now built in to the editor -> help -> reference.

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I know the request is old, but I want to answer it in case anybody else is searching for it (like I did ).

The files are kept at %appdata%\MetaQuotes\Terminal\Help (or C:\Users\[current user]\AppData\Roaming\MetaQuotes\Terminal\Help ).

When you click Help->MQL4 Reference or Help->MQL5 Reference the files are updated with latest version (if needed).

This is the exact question I wanted to ask right now. Thanks for this.