Winpcap

| Project | Description | |---------|-------------| | | Modern replacement by Nmap team. Supports loopback capture, Win10/Win11, better performance, and NDIS 6.x. | | libpcap | Native on Linux/macOS. On Windows, Npcap provides libpcap API compatibility. |

It sounds like you’re asking about — likely its purpose, how it works, or maybe its modern alternatives. winpcap