WinPcap beta4 4.1.0.2980

WinPcap is state of the art software for Windows environments: it allows applications to capture and transmit network packets bypassing the protocol stack, it also has additional useful features which includes kernel-level packet filtering, a network statistics engine and support for remote packet capture.
WinPcap is Freeware, it is released under the BSD open source licence. Programmers have total freedom to alter and use it with their applications, even if it’s commercial. The binary and source code are available in the website.
WinPcap comprises all the classic relevant technology that is usually included in the packet capture literature.