Is your machine SMP? WinPcap doesn't currently support SMP machines.
If no, can you report the bug as described at
http://winpcap.polito.it/contact.htm in the Submitting bugs section?

Loris


> HI, ive tried installing both winpcap 2.3 and the new 3.0 and I get the
> same problem on both with NT 4.0.
>
> Everything appears to install fine but when i tried to run something like
> windump or snort i get an ERROR OpenPcap() device open:
> Error opening adapter
> Fatal Error, Quitting ...
>
> Using 3.0 windump -D does nothing
>
>
> So I looked through logs to try to figure out what was going on and it
> looks like the device driver npf.sys is not starting. I try to start it
> by going to control panel and devices and get the following error:
>
> Could not start the NetGroup Packet Filter Driver service on \\blah
> Error 0193: %1 is not a valid WIndows NT application.
>
> So i looked through the registry in
>
> hkey current machine \ system \ current control \ services \ NPF
>
> and I see the key ImagePath "system32\drivers\npf.sys"
>
> So I try chaning it to "C:\winnt\system32\drivers\npf.sys"
>
> and when i try to start it i get:
>
> Error 0123: The filename, directory name or volume label syntax is
> incorrect.
>
> so then i try
>
> ImagePath  "%SystemRoot%\system32\drivers\npf.sys"
>
> and I get Error 0003: The system cannot find the path specified.
>
> Any suggestions on what I shoudl do to make this work?
>
> Thanks
>
>  --
>
> ??????????????????????????????????
> ?      Anthony S. Clark          ?
> ?      [EMAIL PROTECTED]          ?
> ? Los Alamos National Laboratory ?
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> ??????????????????????????????????
>
>
>
>
>
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