What is wl_hook.dll?

The genuine wl_hook.dll file is a software component of Agnitum Outpost Firewall Pro by Agnitum.
Wl_hook.dll is a DLL (Dynamic Link Library) file that is part of Agnitum Outpost Firewall Pro, a security software that provides a secure firewall and protects systems from incoming targeted attacks. DLL files store data, code and resources needed by one or more programs in order to function correctly. This is not a critical Windows component and should be removed if known to cause problems. Agnitum Outpost Firewall Pro features filtering network traffic and provides protection from various kinds of threats such as hackers, data leaks, malware, etc. The program also blacklists malicious websites, blocks harmful content and automatically encrypts IDs and passwords. Agnitum Ltd is a Russian company that develops security solutions for Windows users. The company started off in 1990 by creating anti-trojan and monitoring solutions for home users. It has currently ventured into personal firewall and Internet security with Outpost Firewall Pro as its flagship product. Agnitum is headquartered in St. Petersburg, Russia.

wl_hook stands for Winlogon Hooking

Wl_hook.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if wl_hook.dll is a Windows system file or if it belongs to an application that you can trust.

Click to Run a Free Scan for wl_hook.dll related errors

Wl_hook.dll file information

The process known as Outpost Hooking Module or Winlogon Hooking or Quick Heal Hooking Module or Firewall Hooking Module or Outost Hooking Module

belongs to software Agnitum Outpost Firewall Pro or Outpost Firewall (version 2009) or Outpost Firewall Pro (version 2009) or Agnitum Outpost Security or Outpost Security Suite or Outpost Security Suite Pro or Quick Heal Firewall Pro or Lavasoft Personal Firewall or Agnitum Outpost

by Agnitum ( or Quick Heal Technologies (P) ( or Lavasoft AB (

Description: Wl_hook.dll is not essential for the Windows OS and causes relatively few problems. The file wl_hook.dll is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\ or in the "C:\Program Files" folder. Known file sizes on Windows 10/8/7/XP are 715,264 bytes (9% of all occurrences), 701,456 bytes and 66 more variants. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The wl_hook.dll file is not a Windows system file. The program is not visible. The service has no detailed description. It can change the behavior of other programs or manipulate other programs. The program starts when Windows starts (see Registry key: AppInit_DLLs). Wl_hook.dll is certified by a trustworthy company. It is a Verisign signed file. Wl_hook.dll is able to record keyboard and mouse inputs and manipulate other programs. Therefore the technical security rating is 61% dangerous; however you should also read the user reviews.

Uninstalling this variant: If there are any problems with wl_hook.dll, you may also do the following:
  1) uninstall Outpost Firewall from your computer using the Control Panel applet Uninstall a Program
  2) go to the support area of the Agnitum website
  3) make sure that you have installed the latest version.

Recommended: Identify wl_hook.dll related errors

Important: Some malware camouflages itself as wl_hook.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the wl_hook.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

i think its part of outpost firewall
Outpost Firewall uses this dll module.
  Oleg Sokolovskiy  
It's for Outpoust firewall
It's Agnitum's Firewall Outpost who runs this at startup to lockdown system during startup preventing possible intrusion to your computer before the firewall is properly started.
  Xerx   (further information)
Part of Outpost firewall start with windows
Part of Outpost Firewall. 1. It tracks shutdown event and allow exit of outpost service. 2. It loads Outpost GUI when user logon. 3. It implements some functionality of minidump analisys for Agnitum Feedack Service.
Outpost Firewall DLL
Outpost Firewall
Even if its part of Outpost Fwall it cause conflicts with many software,protected games (Lineage II), very evil .DLL. But it can be removed without much affect on firewall functionality , use safe mode )))
Gehört bei mir zum Trust Maustreiber. It's a part of Trust Mousedriver
  KL   (further information)
Outpost Firewall
  Krista   (further information)
Outpost Firewall Pro Component

Rating chart

Summary: Average user rating of wl_hook.dll: based on 23 votes with 13 user comments. 18 users think wl_hook.dll is essential for Windows or an installed application. 2 users think it's probably harmless. 2 users suspect danger. One user thinks wl_hook.dll is dangerous and recommends removing it. 2 users don't grade wl_hook.dll ("not sure about it").

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Best practices for resolving wl_hook issues

A clean and tidy computer is the key requirement for avoiding problems with wl_hook. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the wl_hook.dll process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

wl_hook.dll [all]