Rawcap 0.1.3.0

UPDATED ON: May 9, 2011

RawCap is a free command line network sniffer for Windows that uses raw sockets.

Properties of RawCap:

Can sniff any interface that has got an IP address, including 127.0.0.1 (localhost/loopback)
RawCap.exe is just 17 kB
No external libraries or DLL' s needed other than .NET Framework 2.0
No installation required, just download RawCap.exe and sniff
Can sniff most interface types, including WiFi and PPP interfaces
Minimal memory and CPU load
Reliable and simple to use