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Npcap 1.60 will not uninstall

asked 2022-10-15 15:59:01 +0000

wbenton gravatar image

updated 2022-10-15 21:48:51 +0000

Guy Harris gravatar image

I upgraded my Wireshark today and it also tried to replace my Npcap 1.60 with a new 1.71, but the uninstall of 1.60 failed. I tried uninstalling Wireshark from Windows and it worked, but I cannot uninstall Npcap either from within the Wireshark upgrade package or from within the Windows application management. It hangs and doesn't complete the uninstall process. I tried re-installing Wireshark but it says I need to delete Npcap 1.60 first. When I start Wireshark, I get the following:

Version 4.0.0 (v4.0.0-0-g0cbe09cd796b).

Compiled (64-bit) using Microsoft Visual Studio 2022 (VC++ 14.32, build 31332),
with GLib 2.72.3, with PCRE2, with zlib 1.2.12, with Qt 6.2.3, with libpcap,
with Lua 5.2.4, with GnuTLS 3.6.3 and PKCS #11 support, with Gcrypt 1.10.1, with
Kerberos (MIT), with MaxMind, with nghttp2 1.46.0, with brotli, with LZ4, with
Zstandard, with Snappy, with libxml2 2.9.14, with libsmi 0.4.8, with
QtMultimedia, with automatic updates using WinSparkle 0.5.7, with AirPcap, with
SpeexDSP (using bundled resampler), with Minizip, with binary plugins.

Running on 64-bit Windows 10 (21H1), build 19043, with Intel(R) Core(TM)
i5-6200U CPU @ 2.30GHz (with SSE4.2), with 4000 MB of physical memory, with GLib
2.72.3, with PCRE2 10.40 2022-04-14, with Qt 6.2.3, without Npcap or WinPcap,
with c-ares 1.18.1, with GnuTLS 3.6.3, with Gcrypt 1.10.1, with nghttp2 1.46.0,
with brotli 1.0.9, with LZ4 1.9.3, with Zstandard 1.5.2, without AirPcap, with
light display mode, with HiDPI, with LC_TYPE=Japanese_Japan.utf8, binary plugins
supported.

Any help in getting Wireshark back and running again appreciated.

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The error I keep getting is: Unable to load Npcap or WinPcap (wpcap.dll); you will not be able to capture packets. In order to capture packets Npcap or WinPcap must be installed. See https://npcap.com/ for a downloadable version of Npcap and for instructions on how to install it.

wbenton gravatar imagewbenton ( 2022-10-15 16:00:30 +0000 )edit

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answered 2022-10-16 05:16:18 +0000

wbenton gravatar image

I was finally able to uninstall Npcap and then properly re-install Wireshark with new Npcap after I rebooted my PC.

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answered 2022-10-15 20:07:46 +0000

grahamb gravatar image

This is an npcap issue and should be followed up with the npcap project.

An issue I raised with npcap for this can be seen here.

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Asked: 2022-10-15 15:59:01 +0000

Seen: 1,357 times

Last updated: Oct 16 '22