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 use
TeXnicCenter is a feature rich integrated development environment (IDE) for developing LaTeX-documents on Microsoft Windows (Windows 9x/ME, NT/2000/XP) freely available under GPL.
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).