How to remove npf error

The free file information forum can help you find out if npf.sys is a virus, trojan, spyware, adware which you can remove, or a file belonging to a Windows system or an application you can trust.

Software Click to Run a Free Scan for npf.sys related errors

npf.sys file information

The process npf or NPF Driver - TME extensions or npf.sys (NT5/6 x86) Kernel Driver belongs to the software WinPcap Netgroup Packet Filter Driver or NPF Driver by NetGroup - Politecnico di Torino or CACE Technologies.

Description: File npf.sys is located in the folder C:\Windows\System32\drivers. Known file sizes on Windows XP are 32512 bytes (54% of all occurrence), 30336 bytes, 32896 bytes, 32000 bytes, 42000 bytes, 35072 bytes, 32528 bytes, 14448 bytes.
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The service has no detailed description. The file is not a Windows core file. There is no file information. npf.sys seems to be a compressed file. Therefore the technical security rating is 25% dangerous, however also read the users reviews.

Recommended: Identify npf.sys related errors

Important: Some malware camouflage themselves as npf.sys, particularly if they are located in c:\windows or c:\windows\system32 folder. Thus check the npf.sys process on your pc whether it is pest. We recommend Security Task Manager for verifying your computer's security. It is one of the Top Download Picks of 2005 of The Washington Post and PC World.

Score

User Comments

Part of installed Winpcap
Stefan

used by Ethereal via Wi Fi Defense application
stxcep

Part of the WinPcap package, is also installed by software that needs a virtual LAN
Dasce

If you know why WinPcap is installed, this isn't a problem. Otherwise...
Dave (further information)

Wird mit Packetyzer LAN Sniffer installiert
Bernd Stricker

it belongs to WinPcap, an Network-Packet Sniffer (OpenSource)
RanuKanu (further information)

used by winPcap Pretty safe.
Brendan (further information)

Confirm David -- installed by WinPcap
StarrDaark

as said before - this is part of the winPCap library - if you use a Ethereal, this file is vital
frederic (further information)

part of WinPcap

Used by WinPcap, an open-source windows packet capturer
David (further information)

Part of a packet sniffer librarie WinPCap (here installed by a WM media capturing program WM Recorder 10)
Georg

Summary: 9 users think npf.sys is essential for Windows or an installed application. 1 user think it's probably harmless. 2 users think it's neither essential nor dangerous. 1 user think npf.sys is dangerous and recommend to remove it..

npf scanner

Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

Spyware Doctor detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.

Registry Booster free scans, cleans, repairs and optimizes your system.

Other processes