2 ms·

I've always thought the "M" stood for "Microsoft" -- wasn't even aware any browsers other than IE supported it.

• chme 5y ago
  There is also CHM which is actually a Microsoft only file format for "Compiled HTML Help" files.
  • IYasha 5y ago
    I love this format. Very fast and compact. Entire Visual Studio help was in it once. Worked VERY well. And there's a KDE/Qt reader.