TeXLive:
TeXLive provides a comprehensive TeX system for most types of Unix, including GNU/Linux and MacOSX, and also Windows.
http://www.texlive.org/

MiKTeX:
It is a TeX distribution for the Windows operating system.
http://www.miktex.org/

W32TeX:
It is a Japanese TeX distribution for the Windows operating system.
http://w32tex.org/

Find the LaTeX packages at:
ftp://ftp.dante.de/pub/tex/systems/win32/ (German)
ftp://ftp.tex.ac.uk/pub/tex/systems/win32/ (England)
ftp://ctan.tug.org/pub/tex-archive/systems/win32/ (USA)

The GSviewer for the PostScript files is optional for WinShell:
http://www.cs.wisc.edu/~ghost/index.html

PDF files can be viewed with Sumatra PDF, Foxit Reader, GSview or Adobe Reader
Sumatra PDF: http://blog.kowalczyk.info/software/sumatrapdf/
Foxit Reader: http://www.foxitsoftware.com/pdf/reader/
GSView: http://www.cs.wisc.edu/~ghost/index.html
Adobe Reader: http://www.adobe.com/

International Hunspell dictionaries:
http://wiki.services.openoffice.org/wiki/Dictionaries



Help information: