The zip file of guenter's link contains a start.exe
to load K-Meleon, which is in the bin folder.
The embedded browser is my version K-Meleon1814forCD,
which you can find on the page for Unofficial K-Meleons
The embedded version of it for OpenCD has been modified
to serve as a starting browser for the programs of the
earlier Open CD, and has therefore changed macros and menus.
You can use instead my original K-Meleon1814forCD,
which has different menus and macros, and embed it in bin.
Note that there are no history, cache or changeable
bookmarks possible, because this version will not write
on a harddisk and can obviously not save files on the CD.
Flash could probably be used from the plugins folder,
and you could try to embed the FoxitPDFreader in the CD.
As I am writing this in K-Meleon with wine on Linux,
I cannot check if start.exe works ok on Windows.
It did not work on Linux with the wine emulator, but
I presume it will with Windows.
Happy New Year and good luck