A feature-rich environment for writing LaTeX documents on Windows
TeXnicCenter is a LaTeXeditor on Windows. Navigating LaTeX documents is simple due to the automatically created document outline. Errors of the LaTeX compilation can be reviewed instantly. TXC features autocompletion and comes with LaTeX templates.
TclTexEd is a great LaTex-Editor written in Tcl/Tk. It includes syntax highlighting, auto-completion and a multi language online help (english, german, indonesia and brazilian). Insert math symbols by simply clicking on Imagebuttons.