From: Chris Hulan <chris.hulan@...>
Date: 2011-10-05T00:32:14+09:00
Subject: Re: net ping is in error in Windows 7 OS

according to the docs
(http://rubyforge.org/docman/view.php/735/296/ping_txt.html)
you need to call the ping method on the object.
You are just creating the object

cheers