What is AdblockPro.dll?

The genuine AdblockPro.dll file is a software component of Adblock Pro by Eyeo .
AdblockPro.dll is a DLL (Dynamic Link Library) file that belongs to Adblock Pro, a browser plugin that detects and blocks browser advertisements and popups from appearing. 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.

Adblock Pro is built to integrate with Internet Explorer and other Internet browsers like Google Chrome and Opera. Adblock detects advertising before a page is loaded on Internet Explorer and hides the empty ad-space. This saves critical network resources and Internet bandwidth. The program works through community-derived blacklists and filters to block known advertising in a variety of forms including pictures, text, JavaScript layers, animations, and flash. The program automatically downloads new filter updates.

Eyeo is a German company that develops and maintains Adblock Pro. The company was founded in 2011 by Till Faida and Vladimir Palant. Adblock grew out a small program Palant had created as a project to block advertising on his computer while he browsed the Internet. Eyeo is currently based in Cologne, Germany.

AdblockPro stands for Adblock Pro Add-on for Internet Explorer

AdblockPro.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 IE Anti-AD Add-ons.

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

AdblockPro.dll file information

The process known as IE Anti-AD Add-ons or AdblockPro belongs to software Adblock Pro by Adblock Pro Team ( or Adblock Pro.

Description: AdblockPro.dll is not essential for the Windows OS and causes relatively few problems. AdblockPro.dll is located in a subfolder of "C:\Program Files (x86)"—typically C:\Program Files (x86)\Adblock Pro\. Known file sizes on Windows 10/8/7/XP are 462,848 bytes (50% of all occurrences), 458,752 bytes or 202,752 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 04F2568A-3E7A-422D-A71E-DC088A635F7D or F385C231-605B-4d8f-ACA9-DBFF765BBE17. The program is not visible. AdblockPro.dll is able to change the behavior of, or monitor Internet Explorer. It is not a Windows system file. AdblockPro.dll is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 54% dangerous.

Uninstalling this variant: You can completely remove Adblock Pro (Control Panel ⇒ Uninstall a Program) or ask the developer,, for support.

Recommended: Identify AdblockPro.dll related errors

If AdblockPro.dll is located in a subfolder of the user's profile folder, the security rating is 58% dangerous. The file size is 202,752 bytes. There is no information about the author of the file. The program has no visible window. The file is able to change the behavior of, or monitor Internet Explorer. AdblockPro.dll is not a Windows core file.

Important: Some malware camouflages itself as AdblockPro.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the AdblockPro.dll process on your PC to see if it is a threat. If IE Anti-AD Add-ons 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.


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Best practices for resolving AdblockPro issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active AdblockPro process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the AdblockPro.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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

AdblockPro.dll [all]