What is PnEL.dll?

PnEL.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about Earthlink Popup Blocker.

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PnEL.dll file information

The process known as Earthlink Popup Blocker belongs to software EarthLink TotalAccess (version 2004, 2003) or EarthLink Software or EarthLink ToolBar by EarthLink (

Description: PnEL.dll is not essential for the Windows OS and causes relatively few problems. The PnEL.dll file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 438,272 bytes (50% of all occurrences), 389,120 bytes, 401,408 bytes or 372,736 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 4B5F2E08-6F39-479a-B547-B2026E4C7EDF. The program is not visible. PnEL.dll is able to change the behavior of, or monitor Internet Explorer. It is not a Windows core file. PnEL.dll is able to record keyboard and mouse inputs and manipulate other programs. Therefore the technical security rating is 54% dangerous; however you should also read the user reviews.

Uninstalling this variant: In case of any problems with PnEL.dll, you can also uninstall the program using the Control Panel ⇒ Uninstall a ProgramEarthLink TotalAccess 2004 or EarthLink Software.

Recommended: Identify PnEL.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as PnEL.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the PnEL.dll process on your PC to see if it is a threat. If Earthlink Popup Blocker has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

Earthlink Toolbar - popup blocker, anti-phishing
  Dustin Goss   (further information)
Part of Earthlink Toolbar
Earthlink Toolbar - has caused DEP errors in explorer.exe
It can cause DEP (Data Execution Prevention) errors, disable Earthlink BHO in IE to fix
  Alvaro Rodriguez   (further information)

Summary: Average user rating of PnEL.dll: based on 5 votes with 4 user comments. One user thinks PnEL.dll is essential for Windows or an installed application. 2 users think it's probably harmless. 2 users think it's neither essential nor dangerous.

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Best practices for resolving PnEL issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active PnEL process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the PnEL.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

PnEL.dll [all]