Compilation comparison

As you build your project, you create content with the goal of compiling. Compiling means combining all the source files and components in the project and processing them into one compiled Help file. The following information explains how they work in WinHelp and HTML Help.

WinHelp

Microsoft HTML Help

WinHelp compiler: HCRTF.EXE

HTML Help compiler: HHA.DLL

Compiles project (.HPJ), topics (.RTF), images (.BMP, .WMF, .MRB, .SHG), multimedia (.WAV, .MOV), and other source files into a single file (.HLP) for distribution. WinHelp 4 projects require a separate contents file (.CNT) as part of the deliverables

Compiles project (.HHP), contents (.HHC), index (.HHK), topics (.HTM), images (.GIF, .JPEG), multimedia (.WAV, .MOV, etc.) and other source files into a single file (.CHM) for distribution