docpad.js that throws “module” is undefined

docpad.js

/*
 * Export our DocPad Configuration
 */
module.exports = {

  // Change the port DocPad uses from the default 9778 to 8080
	port: 8080,

	/*
	 * Template Data
	 * =============
	 * These are variables that will be accessible via our templates
	 * To access one of these within our templates, refer to the FAQ: https://github.com/bevry/docpad/wiki/FAQ
	 */
	templateData: {
	
		/*
		 * Specify some site properties
		 */
		site: {
		
			// The production url of our website
			url: "http://test.com",
			
			// Here are some old site urls that you would like to redirect from
			oldUrls: [],
			
			// The default title of our website
			title: "test",
			
			// The website description (for SEO)
			// When your website appears in search results in say Google, the text here will be shown underneath your website's title.
			description: "test",
			
			// The website keywords (for SEO) separated by commas
			keywords: "test",
			
			// The website author's name
			author: "test",
			
			// The website author's email
			email: "[email protected]",

			// Your company's name
			copyright: "© test 2013"
			
		},
		
		/*
		 * Helper Functions
		 * ================
		 */
		 
		// Get the prepared site/document title
		// Often we would like to specify particular formatting to our page's title
		// we can apply that formatting here
		getPreparedTitle: function getPreparedTitle() {
			return (this.document.title ? this.document.title + " | " : "") + this.site.title;
		},
		
		// Get the prepared site/document description
		getPreparedDescription: function getPreparedDescription() {
			return (this.document.description || this.site.description);
		},
		
		// Get the prepared site/document keywords
		getPreparedKeywords: function getPreparedKeywords() {
			// Merge the document keywords with the site keywords
			return this.site.keywords.concat(this.document.keywords || []).join(", ");
		}
		
	},
	
	/*
	 * Collections
	 * ================
	 * These are special collections that our website makes available to us
	 */
	collections: {
	
		// For instance, this one will fetch in all documents that have pageOrder set within their meta data
		pages: function pages(db) {
			var pages = db.findAllLive({
							pageOrder: {$exists: true}
						}, 
						[
							{pageOrder: 1}, 
							{title: 1}
						]);
			return pages;
		},
		
		// This one, will fetch in all documents that will be outputted to the posts directory
		posts: function posts(db) {
			var posts = db.findAllLive({
							relativeOutDirPath: "posts"
						},
						[
							{date: -1}
						]);
			return posts;
		}
	
	},
	
	/*
	 * DocPad Events
	 * ================
	 * Here we can define handlers for events that DocPad fires
	 */
	events: {
	
		// Used to add our own custom routes to the server before the docpad routes are added
		serverExtend: function serverExtend(opts) {
			var server = opts.server;
			var docpad = this.docpad;
			
			// As we are now running in an event,
			// ensure we are using the latest copy of the docpad configuraiton
			// and fetch our urls from it
			var latestConfig = docpad.getConfig();
			var oldUrls = (latestConfig.templateData.site.oldUrls || []);
			var newUrl = latestConfig.templateData.site.url;
			
			// Redirect any requests accessing one of our sites oldUrls to the new site url
			server.use(function use(req, res, next) {
				if (oldUrls.indexOf(req.headers.host) != -1) {
					res.redirect(301, newUrl + req.url);
				} else {
					next();
				}
			});
		}
	
	}

};

use docpad.cmd run instead of docpad run.
The latter will execute the file docpad.js with wsh