CoCoA 5 is still missing modules, resolutions, ideal of points. See CoCoALib-functions.html for the translation table and toc.html for the (work in progress) manual
Download
Emacs interface (suggested Emacs: emacs-23.N-bin-i386.zip about 43Mb)

Extract the cocoa-5.0 folder into C:. (check that C:\cocoa-5.0 contains "packages" and "emacs" and not "cocoa-5.0")


Setting up Emacs Set the environment variable HOME like this:
DONE!! Now Emacs recognises files with a CoCoA-5 extension: you should name your files blah.cocoa5 or blah.cpkg5
For Emacs experts only: you might prefer to copy into your .emacs just the settings you want from CoCoA-5/emacs/cocoa.emacs
Sometimes CoCoA gives and error message if the starting ".cocoa5" file is not on disk "C:"
Graphical interface To do