CREANDO WINDOWS DESKTOP APPLICATION:

Para crear el proyecto de Windows App y ejecutarlo:

0.Download and install NodeJS from the NodeJS Website

1. Descargar para la version de OS que se quiere y descomprimir: nw.js
https://github.com/nwjs/nw.js
Call all Node.js modules directly from DOM and enable a new way of writing applications with all Web technologies.

Quedo instalado en: 
C:\Users\josnersosa\Desktop\NEXTLOOPSOLUTIONS\nwjs-v0.12.0-win-x64

2. Crear el folder del proyecto C:\your\project\folder\src y crear archivo package.json. Incluir codigo fuente HTML,JS, CSS alli.

Quedo en:
C:\Users\josnersosa\Desktop\NEXTLOOPSOLUTIONS\NEXTdrawDesktop\src

3. Para ejecutar el proyecto, ir al folder en 1 y ejecutar:
nw.exe C:\your\project\folder\src

Para el ejemplo queda asi:
nw.exe C:\Users\josnersosa\Desktop\NEXTLOOPSOLUTIONS\NEXTdrawDesktop\src



Para empaquetar el proyecto de Windows App:

0. Ejecutar (SOLO PARA CONFIGURAR EL ENTORNO, SE HACE UNA SOLA VEZ EN LA MAQUINA)
npm install -g grunt-cli

2. Crear en la carpeta base del proyecto C:\your\project\folder\ los archivos package.json y Gruntfile.js, de la siguiente manera:	
/
+-- dist
+-- Gruntfile.js
+-- package.json
+-- src
    +-- index.html
    +-- package.json
    +-- js
    ¦   +-- index.js
    +-- css
        +-- style.css
By using the grunt-node-webkit-builder it is necessary to keep the source of the building tool (all in the root directory) separate 
from the source code of the node-webkit program. Otherwise it may happen that the building tools (Grunt, you know?) 
get bundled in the node-webkit program as well which leads to high file sizes and slow execution times.
So it’s clear we specify in /package.json only the dependencies that are necessary for the building process:	
{
  "name": "do-my-build",
  "version": "0.0.1",
  "description": "Using Grunt to build my little program",
  "author": "Falco Nogatz <fnogatz@gmail.com>",
  "private": true,
  "dependencies": {
    "grunt": "~0.4.2",
    "grunt-node-webkit-builder": "~0.1.14"
  }
}

We also have to create the Gruntfile.js:
module.exports = function(grunt) {
  grunt.initConfig({
    pkg: grunt.file.readJSON('src/package.json'),
    nodewebkit: {
      options: {
        build_dir: './dist',
        // specifiy what to build
        mac: false,
        win: true,
        linux32: false,
        linux64: true
      },
      src: './src/**/*'
    },
  });
 
  grunt.loadNpmTasks('grunt-node-webkit-builder');
 
  grunt.registerTask('default', ['nodewebkit']);
};

The real node-webkit program can be written now in the /src directory. As also mentioned in the tutorials linked above, 
the /src/package.json should be filled with some node-webkit related fields:
{
  "name": "my-program",
  ...
  "main": "index.html",
  "window": {
    "toolbar": false,
    "width": 800,
    "height": 600
  }
}

3. Ir a la carpeta del proyecto y ejecutar:
npm install grunt --save-dev

4. Luego ejecutar:
npm install grunt-node-webkit-builder --save-dev

5. To build the node-webkit program for the architectures specified in /package.json you simply have to call the command:

(erase cached source file at C:\Users\USUARIO\AppData\Local\app_name) o
for(module in global.require.cache){
    if(global.require.cache.hasOwnProperty(module)){
        delete global.require.cache[module];
    }
}
location.reload()                                                     o	
gui.APP.clearCache() is working for me. 
Potentially this is due to an update to NW. 
I am running 0.11.5. Also this answer appears to no longer work.      o
var customClearCache = function(){
  var dir = path.join(gui.App.dataPath, '/Cache');
  fs.remove(dir, function(err) {
    if (err) return console.error(err)
    fs.mkdirs(dir, function(err) {
      if (err) return console.error(err)
      // This is where I start my app
    });
  });
};
h

(recordar poner en 0 la opcion de guardar cache de firefox)

grunt