What is popup.dll?

Popup.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 popup.dll.

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

Popup.dll file information

The process known as popup.dll

belongs to software Ashampoo WinOptimizer or Defender Pro PC Tune-up and or Ashampoo WinOptimizer Platinum Suite (version 2) or Ashampoo WinOptimizer Platinum (version 3) or popup preventer

by S.A.D or ashampoo GmbH & Co. KG ( or Micro Application (

Description: Popup.dll is not essential for the Windows OS and causes relatively few problems. Popup.dll is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\—normally C:\Program Files\Ashampoo\ASHAMP~1\. Known file sizes on Windows 10/8/7/XP are 414,720 bytes (62% of all occurrences), 429,056 bytes, 438,784 bytes or 141,824 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 49E0E0F0-5C30-11D4-945D-000000000010 or 49E0E0F0-5C30-11D4-945D-000000000003 or FCADDC14-BD46-408A-9842-CDBE1C6D37EB. There is no description of the program. The program has no visible window. It is able to monitor web browsers. The service has no detailed description. It is not a Windows core file. Popup.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 76% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you are having problems with popup.dll, you could also remove the entire program SimonTools XP-Tuner 2004 or Ashampoo WinOptimizer using Windows Control Panel, visit the website or update the program to the latest version.

Recommended: Identify popup.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as popup.dll. Therefore, you should check the popup.dll process on your PC to see if it is a threat. If popup.dll 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

IE extension ashampoo Winoptimizer Platinum Suite
Came with Defender Pro 2005 for pop up blocker util
part of Defender Pro 2005 pop up blocker -also by Ashampoo
Ashampoo WinOptimizer PopUp-Blocker
BargainBuddy - popup.dll BargainBuddy is a BHO that displays advertisements when certain keywords are shown on websites. This can give you pop unders and checks for updated versions of itself every time your computer starts. if u delete it regenerates.
Ashampoo WinOptimizer PopUp-Blocker-harmless
Ashampoo WinOptimizer PopUp-Blocker
Ashampoo WinOptimizer PopUp-Blocker-harmless
it can not be deleted because of something integrated in the file but it will make popups about the product that the company is selling
Came in Defender Pro 2007 -- popup blocker
Ashampoo WinOptimizer Popup Blocker, not dangerous.

Rating chart

Summary: Average user rating of popup.dll: based on 15 votes with 11 user comments. 12 users think popup.dll is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous. One user thinks popup.dll is dangerous and recommends removing it. 2 users don't grade popup.dll ("not sure about it").

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Best practices for resolving popup issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active popup process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the popup.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

popup.dll [all]