From Readme:
Website : http://etherpad.org/ (download : etherpad-lite-win.zip)Etherpad lite is a really-real time collaborative editor spawned from the Hell fire of Etherpad.
We're reusing the well tested Etherpad easysync library to make it really realtime. Etherpad Lite
is based on node.js ergo is much lighter and more stable than the original Etherpad. Our hope
is that this will encourage more users to use and install a realtime collaborative editor. A smaller, manageable and well
documented codebase makes it easier for developers to improve the code and contribute towards the project.
Launch it with start.bat at the root directory and connect with your browser at http://127.0.0.1:9001
Portable : yes ("Data" saved in the var directory)
Stealth: yes
Version ? the file CHANGELOG.md said 1.0.1
Despite the fact that the port 9001 must be opened, this is a really cool way to collaboratively edit text documents with friends or colleagues.
A quick demo (3,9 Mo , Format : APNG)*
*Just for info: done with LICEcap (4,40 Mo) then size optimized with PngOptimizer