Visioo-writer supports document formats such as KWord, and this, an open-source word processor written in C++?
Visioo-Writer Visioo-writer - The OpenDocument file viewer is a computer program designed to run on multiple operating systems with the explicit ability to view OpenDocument and OpenOffice.org/StarOffice documents. It is currently in a stable state (version 0.6) but updates continue. The goal is to create a small application to open popular and free document formats (e.g., AbiWord, KWord). The software is open source, and written in Python. Downloads are available for Microsoft Windows and Linux.
Go-oo Go-oo (also Go-Open Office; previously called ooo-build) was an office suite which started as a set of patches for OpenOffice.org, then later became an independent fork of OpenOffice.org with a number of enhancements, sponsored by Novell.