LyX is a document processor that encourages an approach to writing based on the structure of your documents (WYSIWYM) and not simply their appearance (WYSIWYG).
Asymptote is a powerful descriptive vector graphics language that provides a natural coordinate-based framework for technical drawing. Labels and equations are typeset with LaTeX, for high-quality PostScript output.
LaTeX Editor, called later LEd, is a free environment for rapid TeX and LaTeX document development.
LaTeX Editor is designed to work on Windows® 95/98/Me/NT4/2000/XP/2003 operating systems. LEd's capabilities vary according to the operating system used, e.g., Visual Styles from Windows® XP. It, however, works with almost all functionality also on Windows® 95.