Grep for Windows

I was using a new virtual machine I setup not long ago and was missing a good way to search for a file by it's content.  Normally I would use a command line version of grep but unfortunately this virtual machine was a Windows 2008 box and not quite setup like I normally would.  Since I was looking for a grep utility quick I decided try Google for the answer.  Turns out I stumbled across a GUI Grep utility for Windows and so far I'm loving it.  You can find it here.  http://www.wingrep.com/index.htm