[Winpcap-users] winpcap 4.1.1 won't install, says i already have an older version

[Jay Kay]

Lucky for you I had the same problem.  I'll go through the steps that
someone else led me through.

Reboot your computer, then run Device Manager.  Enable "Show Hidden
Devices" in the "View" menu.  Go to "Non-Plug and Play Drivers" and tell me
if "NetGroup Packet Filter Driver" is there or not.

 - Jay

On Fri, Sep 7, 2012 at 11:35 AM, Keith Brown <
keithnbrowncarlisle at hotmail.com> wrote:

>   I’m trying to install the Managment Utility for my TP-Link TL-PA211
> powerline adaptors, which seems to rely on WinPcap 4.1.1.
>
> I’m running Windows 7 64-bit Professional on a custom built desktop pc.
>
> During installation it says “A previous Version of WinPcap has been
> detected on this system and cannot be removed because in use by another
> application. Please close all the WinPcap-based applications and run the
> installer again”
>
> Now I've never installed WinPcap myself before, and i don’t know what i
> have installed which may have done as a side effect.
>
> I’ve done some digging and discovered that WinPcap doesn't appear in the
> list of programs to uninstall in programs and features.
>
> I also found this exchange on the board and tried following it
> http://www.winpcap.org/pipermail/winpcap-users/2006-July/001246.html
>
> I found packet.dll and wpcap.dll in C:\Windows\SysWOW64 as i ran a full
> search, and i found npf.sys in C:\Windows\System32\drivers all of them had
> the same version of 4.0.0.1040
>
> What should i do?
>
> Keith Brown
>
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