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.
WriteNow WriteNow was one of the two original word processor applications developed for the launch of the Apple Macintosh in 1984, and was the primary word processor for computers manufactured by NeXT. WriteNow was purchased from T/Maker by WordStar in 1993, but shortly after that, WordStar was purchased by The Learning Company, which ended sales. It had a combination of powerful features, excellent performance, and small system requirements.