[Winpcap-users] Start and Terminate WinPcap manually

Gianluca Varenni gianluca.varenni at cacetech.com
Wed Feb 22 16:31:09 GMT 2006

Just a quick note. In the same thread containing that mail you linked below, 
there's another mail from Loris:


As he clearly points out, that process *should* work if, among other things, 
no other WinPcap versions are installed on the system. If another copy of 
WinPcap in installed, the manual procedure described in that mail will 
probably corrupt the existing installation, and result in an unexpected 
behavior. Again, we strongly discourage this manual approach to install 

Have a nice day

----- Original Message ----- 
From: "Gubrush ." <vga_planets at hotmail.com>
To: <winpcap-users at winpcap.org>
Sent: Monday, February 20, 2006 12:26 AM
Subject: RE: [Winpcap-users] Start and Terminate WinPcap manually

> Hi
> I found this article to be useful:
> http://www.winpcap.org/pipermail/winpcap-users/2005-August/000270.html
> it rougly describes how to install the npf.sys file, create the service 
> handle.
> you can start it manually by a call to StartService.
> I also discovered you can stop it by a call to ControlService  with 
> command argument SERVICE_CONTROL_STOP.
> ControlService can be used to determine when the service has been stopped.
> To remove the service handle you can call DeleteService.
> On the other hand, I've heard that the winpcap team is planning to release 
> a WinPCAP OEM version that doesnt need to install anything. But the 
> solution above works for me until that time. :)
>>From: "Ullrich, Michael (ext)" <michael.ullrich.ext at siemens.com>
>>Reply-To: winpcap-users at winpcap.org
>>To: <winpcap-users at winpcap.org>
>>Subject: [Winpcap-users] Start and Terminate WinPcap manually
>>Date: Sat, 18 Feb 2006 16:08:15 +0100
>>can anyone tell me how to install the winpcap modules manually. I have
>>an windows application, using packet-detection based on WinPcap, that
>>should be distributed without an installationprogram - so I cannot run
>>the WinPcap installer.
>>This application is using the winpcap library for detecting
>>networkpackets. The dll`s wpcap.dll, packet.dll, pthreadvc.dll are
>>distibuted with the application. I want to know how I can activate the
>>winpcap service from my application - detect packets - and
>>deactivate/unlod the winpcap service when my application ends.
>>Winpcap-users mailing list
>>Winpcap-users at winpcap.org
> _______________________________________________
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> Winpcap-users at winpcap.org
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