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.
Directory Opus Directory Opus (or "DOpus" as its users tend to call it) is a popular file manager program, originally written for the Amiga computer system in the early to mid-1990s. Development on the Amiga version ceased in 1997, but an entirely re-written version of Directory Opus is still being actively developed and sold for the Microsoft Windows operating system by GPSoftware.