This document covers only the process of building K-Meleon's source code. For documentation on building a complete K-Meleon distribution, see BuildKMeleonDistribution.
All you need to do next is build kmeleon.exe and the plugins. This should be straightforward if you use Visual Studio.
If Visual Studio complains that it cannot find a Mozilla header file, go to Project > Settings > C/C+'+ > Preprocessor > Additional include directories (VS 6) or Project > Properties > C/C+'+ > General > Additional Include Directories (VS 2003) and correct the Mozilla directories.
You should also change the output directory, Project > Settings > Link > Output file name (VS 6) or Project > Settings > Linker > General > Output File (VS 2003).