Wireshark-dev: Re: [Wireshark-dev] Wireshark fails to start with wpcap.dll built by Visual Stud

From: Pascal Quantin <pascal.quantin@xxxxxxxxx>
Date: Wed, 3 Feb 2016 17:26:58 +0100

2016-02-03 16:16 GMT+01:00 Yang Luo <hsluoyb@xxxxxxxxx>:
Hi list, 

After several months, I retried updating wpcap project from VS 2005 to VS 2010) and encountered the same issue, under Wireshark 2.0.1 x64, Win10 x64.

The Wireshark UI said "Child dumpcap process died: Access violation". I don't know what this means, because I have used Administrator privilege to launch Wireshark.

I have just attached the x64 version wpcap.dll in this mail, you can just substitute it with the original WinPcap/Npcap version in C:\Windows\System32. Then launch Wireshark and you will see the crash. Hope that any one can see what's wrong with it here.

Hi Yang,

I just gave a test to you dll (have replaced the existing version in C:\windows\System32\ and C:\windows\SysWOW64\ and did not face a crash when running it on Windows 7 x64:

Version 2.0.2 (v2.0.2rc0-71-g1e10145 from master-2.0)

Copyright 1998-2016 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.

License GPLv2+: GNU GPL version 2 or later <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>

This is free software; see the source for copying conditions. There is NO


Compiled (64-bit) with Qt 5.5.0, with WinPcap (4_1_3), with libz 1.2.8, with

GLib 2.42.0, with SMI 0.4.8, with c-ares 1.9.1, with Lua 5.2, with GnuTLS

3.2.15, with Gcrypt 1.6.2, with MIT Kerberos, with GeoIP, with QtMultimedia,

with AirPcap.

Running on 64-bit Windows 7 Service Pack 1, build 7601, with locale C, with

Npcap version 0.05, based on WinPcap version 4.1.3 (packet.dll version, based on libpcap version 1.0 branch 1_0_rel0b (20091008), with

GnuTLS 3.2.15, with Gcrypt 1.6.2, with AirPcap 4.1.0 build 1622.

Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz (with SSE4.2), with 7879MB of physical


Built using Microsoft Visual C++ 12.0 build 40629

Wireshark is Open Source Software released under the GNU General Public License.

Check the man page and http://www.wireshark.org for more information.

Does it require a reboot of the system?



On Wed, Aug 5, 2015 at 1:27 PM, Yang Luo <hsluoyb@xxxxxxxxx> wrote:
Hi list,

The original WinPcap DLL, wpcap.dll is built by VS 2005, I have updated it to VS 2010 using VS automatic conversion wizard without changing one line of code. But when I launched Wireshark on Win8.1 x64, I encountered an app crash error:

Problem signature:
  Problem Event Name: APPCRASH
  Application Name: dumpcap.exe
  Application Version:
  Application Timestamp: 55be9e4d
  Fault Module Name: wpcap.dll
  Fault Module Version:
  Fault Module Timestamp: 55c19749
  Exception Code: c0000005
  Exception Offset: 000000000001fbca
  OS Version: 6.3.9600.
  Locale ID: 1033
  Additional Information 1: 12c1
  Additional Information 2: 12c1dabe3a9c9d7be788f03210b25196
  Additional Information 3: b207
  Additional Information 4: b207cb8de8ff9d2641379d976acebfca

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I have updated Packet.dll from VS 2005 to VS 2010 without problem. (If I use VS 2005 version wpcap.dll and VS 2010 version Packet.dll, it works fine) So it can't be lacking C run-time issue. I don't know what's wrong with it?


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