Programs of which I have written for Win32 (some ported to Linux). We make a WordProcessor (WPi) and a web browser, as well as many handy tools. We also make a spell checker which can be integrated into existing applications.
SVG export script for powerpoint. You create a diagram using powerpoint's shapes, text boxes, drawing tools, etc. Then you run export_to_svg (a macro) and bingo you have an SVG fragment that you can view in your favourite browser.