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WinPcap isn't supported on Windows 10

For 14 years, WinPcap was the standard libpcap package for Windows. But when Windows 10 was released without NDIS 5 support, WinPcap failed to keep up, leaving users wondering what to do. Fortunately, the Nmap Project stepped up and converted the original WinPcap to the new NDIS 6 API, giving users a fast and completely compatible alternative to WinPcap for Windows 10.

Windows 10 1607 also introduced strict driver-signing requirements that WinPcap can't meet. Npcap is fully compliant, with its drivers tested and co-signed by Microsoft.

Npcap is WinPcap for Windows 10

Built on the tried-and-true WinPcap codebase, with a host of exciting new features, and extensively tested with currently-supported versions of Windows, Npcap is the future of WinPcap. Ready to give Npcap a try? Just download the latest installer. Npcap works great with Wireshark, Nmap, and more of your favorite tools already. For software that's written with WinPcap in mind, simply select "WinPcap API-compatible mode" at installation.

Need more information? Check out our WinPcap feature comparison, read through the Npcap Users Guide, or just try it for free. If you want to distribute Npcap with your software or install it on more than 5 systems, check out Npcap OEM.


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