Wpcap -

| Library | Recommendation | |---------|----------------| | | ✅ Modern choice – actively maintained, supports loopback capture, Win11/ARM64, and is compatible with WinPcap APIs. | | WinPcap | ❌ Discontinued (last release 2013). Don't use for new projects. | | Win10Pcap | ⚠️ Limited niche use; largely replaced by Npcap. |

// Print device list for (pcap_if_t *d = alldevs; d != NULL; d = d->next) printf("%s\n", d->name); if (d->description) printf(" (%s)\n", d->description); supports loopback capture

For most people, the easiest way to get wpcap working is: d != NULL

// Find all network devices if (pcap_findalldevs(&alldevs, errbuf) == -1) fprintf(stderr, "Error finding devices: %s\n", errbuf); return 1; d = d-&gt

pcap_freealldevs(alldevs); return 0;