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Windows 7: WinPCAP


12 Jun 2009   #1

Window 7 - 7100
 
 
WinPCAP

Anyone out there no of a PCAP that will work on 7??

My System SpecsSystem Spec
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25 Jun 2009   #2

Windows 7 RC
 
 
WinPcap 4.1 beta5 works

I've just downloaded WinPcap 4.1 beta5 from here: WinPcap, the Packet Capture and Network Monitoring Library for Windows

Set the compatibility mode to Windows Vista (right click on the installer executable then select Properties; on the Compatibility tab, check "Run this program in compatibility mode for", select Windows Vista SP1 from the dropdown list, then finally click OK =)) and it will install as it should.

For me it worked flawlessly so far.
My System SpecsSystem Spec
25 Jun 2009   #3

Window 7 - 7100
 
 

Thank you! Worked perfectly!
My System SpecsSystem Spec
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26 Sep 2009   #4

Windows 7
 
 

Dude I did this, it installed fine, but when I try to run wireshark it tells me that the NPF driver isnt loaded, so then I tried "net start npf" after some googling and it says something about system error 5 has occurred "access denied"

meh
My System SpecsSystem Spec
26 Sep 2009   #5

Win7x64
 
 

Quote   Quote: Originally Posted by digitsix View Post
Dude I did this, it installed fine, but when I try to run wireshark it tells me that the NPF driver isnt loaded, so then I tried "net start npf" after some googling and it says something about system error 5 has occurred "access denied"

meh
Run Wireshark as an admin (right-click the WS shortcut, select "run as admin").
My System SpecsSystem Spec
26 Sep 2009   #6

Windows 7
 
 

thank you! worked like a charm!!!

LOL though on a side note, the problem I was trying to trouble shoot doesnt happen when im capturing packets, go figure!#$#$%$@)(*@#(&%
My System SpecsSystem Spec
26 Sep 2009   #7

Win7x64
 
 

Quote   Quote: Originally Posted by digitsix View Post
thank you! worked like a charm!!!

LOL though on a side note, the problem I was trying to trouble shoot doesnt happen when im capturing packets, go figure!#$#$%$@)(*@#(&%
Do you mean the act of capturing literally makes the symptom go away? That would make it interesting. What's the symptom?
My System SpecsSystem Spec
29 Sep 2009   #8

Windows 7
 
 

I run this software called notepad++ to do all my code editing in, and I use the FTP_synchronize plugin to work with remote files. On this computer and this computer only, (and it does work fine on my other Windows 7 machines (i have 3)), it only downloads partial files yet reports success, it also cannot fully download large directory lists. Its very strange...

Anyway, the packet capture fix seemed to be a fluke because its back to doing it again, even if the packets are being captured. I still havent figured out what the problem is though
My System SpecsSystem Spec
29 Sep 2009   #9

Win7x64
 
 

Quote   Quote: Originally Posted by digitsix View Post
I run this software called notepad++ to do all my code editing in, and I use the FTP_synchronize plugin to work with remote files. On this computer and this computer only, (and it does work fine on my other Windows 7 machines (i have 3)), it only downloads partial files yet reports success, it also cannot fully download large directory lists. Its very strange...

Anyway, the packet capture fix seemed to be a fluke because its back to doing it again, even if the packets are being captured. I still havent figured out what the problem is though
You really don't want to be in a situation where capturing packets completely alters the outcome. Those can be very nasty problems to understand

Given you can now repro while capturing, what does the capture tell you? Can you see which side is truncating the large directory lists, and similar?

If you can't get any answers from the trace, try doing all this in [safe mode + net]. If that works, the most likely culprit is an anti-virus or firewall driver which is buggy. The reason you don't see its activities in the trace is because it occupies the same "NDIS intermediate" level as the packet sniffer driver - WinPCap in this case.
My System SpecsSystem Spec
29 Sep 2009   #10

Windows 7
 
 

Depending on what you are using it for, it would be easier to install Linux. You can dual boot 7 and Fedora 11. That is how I have mine set up. Linux is far superior to windows when using programs like this. I can give you a few sites that explain the process in linux if you want.

I hope I don't piss anyone off by suggesting Linux, but it is a lot easier to do certain functions in Linux than windows. And it's free.
My System SpecsSystem Spec
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