What is ieconfig_1und1.dll?

Ieconfig_1und1.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 m2ieconfig.

Click to Run a Free Scan for ieconfig_1und1.dll related errors

Ieconfig_1und1.dll file information

The process known as m2ieconfig (version - 1und1 edition) or WEB.DE1 IEConfig DLL or GMX IEConfig DLL or WEB.DE IEConfig Vista DLL belongs to software m2ieconfig or 1und1 IEConfig Vista DLL or 1und1 IEConfig DLL by software engineering und consulting GmbH ( or 1 und 1 Internet AG or 1&1 Mail & Media GmbH.

Description: Ieconfig_1und1.dll is not essential for the Windows OS and causes relatively few problems. Ieconfig_1und1.dll is located in the C:\Windows\System32 folder or sometimes in a subfolder of C:\Windows. Known file sizes on Windows 10/8/7/XP are 1,008,768 bytes (24% of all occurrences), 610,176 bytes and 14 more variants. 
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 D48FF4B4-E68F-47D1-8E25-81A0F0EEB341. The program has no visible window. It is able to monitor web browsers. The file is digitally signed. The service has no detailed description. Ieconfig_1und1.dll is not a Windows core file. The ieconfig_1und1.dll file is a Verisign signed file. There is no file information. Ieconfig_1und1.dll is able to connect to the Internet, record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 58% dangerous.

Uninstalling this variant: If problems with WEB.DE1 IEConfig DLL or GMX IEConfig DLL occur, you can search for help on the company's website or uninstall the associated program (Start > Control Panel > Uninstall a Program ).

Recommended: Identify ieconfig_1und1.dll related errors

Important: Some malware disguises itself as ieconfig_1und1.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the ieconfig_1und1.dll process on your PC to see if it is a threat. If m2ieconfig 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 ieconfig_1und1 issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active ieconfig_1und1 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the ieconfig_1und1.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

ieconfig_1und1.dll [all]