DotCHM - Version 2.1 Create a Windows Help File in One Minute! DotCHM is the easiest most intuitve help file generator ever created. DotCHM creates both WinHelp and HTML help files simply and easily. DotCHM is so simple to use that even novice computer users are among our most ardent supporters. With customers ranging from small developers to NASA, 3M, General Motors and the US Army, you know you are in good hands with a tool that is not only professional and easy to use but is backed up by World class support.