Parsing IIS log files with logstash on Windows

I found a couple of example configurations for IIS logging, but they both rely on NXLog and contain deprecated configuration settings:

• https://github.com/joshrobb/logstash-iis/blob/master/iis-parse.conf
• https://gist.github.com/joshrobb/4977453

This is a useful site for debugging grok expressions:

• http://grokdebug.herokuapp.com/