Angry IP Scanner 2.21

This is a very fast and small IP scanner. It has many options, such as the ability to resolve host names, check for open ports, scan dead machines. It contains many features, such as configurable scanning columns, multiple port scanning, various export formats, and plug-ins.

Code:

http://download.cnet.com/Angry-IP-Scanner/3000-2085_4-10045978.html