Most antivirus programs classify IECodecPlg.dll as a harmful extension to Internet Explorer: such as not-a-virus:AdWare.Win32.WebSearch.bb (detected by Kaspersky), and Adware.WebDir (detected by Symantec). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated IECodecPlg.dll software, it's no surprise. In most cases, this kind of adware is installed on the side when you install a freeware product like a Youtube Downloader or a PDF Converter. In the following selection, you can read more about IECodecPlg.dll and how to get rid of it.
Here is some of what is known about the IECodecPlg.dll process. Up to now, our technical analysts have not been able to relate it to any particular software.
Description: IECodecPlg.dll is not essential for Windows and will often cause problems. IECodecPlg.dll is located in the C:\Windows folder.
The file size on Windows 10/8/7/XP is 113,152 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 CA13D72F-2DAC-4D99-B08D-C5EA1C920E89. IECodecPlg.dll is a file with no information about its developer. The program is not visible. The IECodecPlg.dll file is an unknown file in the Windows folder. It is able to monitor web browsers. There is no detailed description of this service. The file is not a Windows core file. Therefore the technical security rating is 92% dangerous.
Recommended: Identify IECodecPlg.dll related errors
Important: You should check the IECodecPlg.dll process on your PC to see if it is a threat. If IECodecPlg.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 ▾
The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active IECodecPlg process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the IECodecPlg.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.