Node.js errors with WebMatrix on IIS 8 (Windows 8 RTM)

After installing Node.js to try my hand at some server side JavaScript using WebMatrix, I was getting a 500 internal server error. This is what was returned to the browser: iisnode was unable to read the configuration file. Make sure the web.config file syntax is correct. In particular, verify the  <a href=https://github.com/tjanczuk/iisnode/blob/master/src/samples/configuration/web.config>iisnode configuration section</a> matches…