Matrix Calculator for DOS
This program was created for calculation operations with matrixes. It has nice pseudo-graphics menus and multi-"windows" interface. It's absolutely free for non-commercial use. You have no right to make any kind of profit from it or change, cut, or copy any part of the code.
Download
here.
Matrix Calculator for Win32
It is a windows version of the calculator with nice GUI and fully functional.
The Matrix Calculator for Win32 is free for non-commercial use. You have no right to make any profit from it or change, cut or copy any of the code.
Download
here.
Xml Clipse 
It is a plugin for Eclipse Platform for creating, viewing and editing XML documents. As of now it has only basic functionality, but will support XML schema definition and validation. Maybe also alternative presentation for some xml types. The plugin is open-source and is available on
SourceForge.
PCCD
It's a tool for creating programs or files collections with full info about each item like description, etc. It's easy to manage, browse and backup all your stuff with PCCD.
For further details, contact me at
[email protected]