Hi DavidR,

You need this to handle raw packets (wpcap.dll implements the libpcap API (plus some extensions) for Win32 systems; packet.dll, and the drivers for various Win32 operating systems, provide a Win32-specific raw link-layer packet access mechanism.). Certain sniffer programs need this dll as well. Remember the program is only a first implementation of an idea, and the wpcap.dll should have been included in the zip.

polonus