Does the same problem happen with WinPcap 4.1beta5? Can you send me the output of "windump -D"?
Have a nice day GV ----- Original Message ----- From: [email protected] To: [email protected] Sent: Tuesday, July 21, 2009 6:52 AM Subject: [Winpcap-users] Access violation when using pcap_findalldevs_ex Hello Everyone, I am using WinXP Professional SP3 and Microsoft Visual Studio 6.0 with SP5. I installed Winpcap version 4.0.2. I also got the WpdPack and compiled your basic_dump example (in ...\WpdPack\Examples-pcap\basic_dump). The only thing I had to add to the visual c++ project was the IPHlpApi.Lib (6/16/1999 12:44 PM). When I try to execute the app out of the debugger, it crashes at the call to pcap_findalldevs. I verified that the npf driver was running before I ran the app - and it was. Here is the error: Unhandled exception in basic_dump.exe (NDISNPP.DLL): 0xC0000005: Access Violation. Call Stack: NDISNPP! 5a704d91() I searched your FAQs and your winpcap-users mailing list archives for this or similar problem. The only thing I found was a post back in August 2008 where В. Rasta posted a similar problem. However, I didn't see a response or a resolution?? Interestingly enough, I downloaded windump 3.9.5 and ran it with the -D option. It listed all my adapters ok, and I selected an adapter with the -i option and it captured packets ok. Here are the results I got for the -h option: windump version 3.9.5, based on tcpdump version 3.9.5 WinPcap version 4.0.2 (packet.dll version 4.0.0.1040), based on libpcap version 0.9.5 Here is some info for the NDISNPP.DLL I'm using: File Version: 5.1.2600.5512 File Date: 4/13/08 8:12 PM File Size: 57,344 bytes File Location: C:\WINDOWS\system32\npp Attached is a screen shot of the debugger display for the crash. Any ideas as to what the problem is here with the basic_dump example? Perhaps I'm overlooking something simple. Thanks in advance for any help. Regards, --Bill Salibrici ------------------------------------------------------------------------------ _______________________________________________ Winpcap-users mailing list [email protected] https://www.winpcap.org/mailman/listinfo/winpcap-users
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