- Text Editors with ConTeXt support
- Font Tools
- TeX Distributions
PDF-Reader
Ruby and Perl
- http://www.activestate.com/Products/ActivePerl/
- http://www.ruby-lang.org or http://rubyinstaller.rubyforge.org
You can download ActivePerl here and Ruby here (automatic installation) or here (you need to extract files from zip and add ruby to PATH).
After installing check if these work OK:
perl --version ruby --version