WinPcap is an open source library for packet capture and network analysis for the Win32 platforms. It includes a kernel-level packet filter, a low-level dynamic link library (packet.dll), and a high-level and system-independent library (wpcap.dll, based on libpcap version 0.6.2). Latest Changes: View All Changes Removed support for Windows 9x/ME. Sources still available Enabled the generation of PDB files for the release build, too Raised the compilation warning level to /W4 for packet.dll and wanpacket.dll. Fixed a large amount of warnings Added some initial support for the NpfIm capture engine into packet.dll. Such support is still disabled at compilation time Rewritten the packet.dll debugging code completely to make use of the new TRACE_xxx macros Moved all the code managing strings to the strsafe.h ones (StringCchXXX) Refreshed the Vista build configuration of packet.dll. Now we fully support AirPcap adapters and the IP Helper API on Vista x86 Added support for AirPcapWrite() into packet.dll, i.e. support for transmission with AirPcap adapters Minor cleanup in the scripts to build the developer's pack Added a check for bogus return values from NdisRequest() (Query). The Nortel Contivity VPN Client V04_65.18 has a bug in the driver by which a request for OID_GEN_LINK_SPEED pretends to have written a buffer larger than the one passed as input (BytesWritt Fixed a bug where, in certain scenarios, the AirPcap adapter entries in the adapter list were duplicated Fixed some memory leaks in packet.dll when dealing with AirPcap adapters Fixed several ancillary packet.dll APIs that were crashing if used with AirPcap adapters PacketSetReadTimeout() was returning failure in case of AirPcap adapters Fixed a couple of bugs in the UserLevelBridge sample