[Winpcap-users] Non-admistrator use of WinPcap

Gianluca Varenni gianluca.varenni at cacetech.com
Thu Apr 16 09:54:08 PDT 2009

We are definitely planning to add such option to the WinPcap installer, so 
that you can choose to have the driver loaded automatically upon boot.

Have a nice day

----- Original Message ----- 
From: "Janne Heikkinen" <janne.m.heikkinen at helsinki.fi>
To: <winpcap-users at winpcap.org>
Sent: Thursday, April 16, 2009 5:59 AM
Subject: [Winpcap-users] Non-admistrator use of WinPcap

> From the FAQ:
>> Q-7: Do I need to be Administrator in order to execute programs
>> based on   WinPcap on Windows NT/2000/XP?
>> A: Yes/no. The security model of WinPcap is quite poor, and we plan
>> to work on it in the future. At the moment, if you execute a
>> WinPcap-based application for the first time since the last reboot,
>> you must be administrator. At the first execution, the driver will
>> be dynamically installed in the system, and from that moment every
>> user will be able to use WinPcap to sniff the packets.
> I found that it is possible to change loading of the driver from "Demand"
> to "System" using Device Manager. This way driver gets loaded 
> automatically
> after reboot and non-administrator user can use WinPcap.
> To make the change first "View->Show hidden devices" must be selected in
> Device Manager and then NPF can be found under "Non-Plug and Play 
> Drivers".
> I tested this on XP and Vista.
> Is it possible to make installer that would make this setting 
> automatically?
> - Janne
> _______________________________________________
> Winpcap-users mailing list
> Winpcap-users at winpcap.org
> https://www.winpcap.org/mailman/listinfo/winpcap-users 

More information about the Winpcap-users mailing list