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Wireshark uses a capture library to capture the network traffic, on Windows this was WinPcap for many years, but from Wireshark 3.0 onwards, npcap is used.

The Wireshark installer will install npcap unless the user opts to not to do so. In this case Wireshark will not be able to capture traffic, only load capture files obtained from elsewhere.

If your question is about using npcap with another application then you should use the npcap support system, noting the licence for npcap which restricts commercial use.