What is iefdmcks.dll?

The genuine iefdmcks.dll file is a software component of Free Download Manager by Free Download Manager.
This DLL supports Free Download Manager, a standalone download accelerator. FDM enables you to optimize and schedule downloads, pause and restart downloads, and adjust traffic usage along with several additional features. It is released under the GNU Public License, but there are several counterfeit versions on the internet. If you are not sure if yours is legitimate, it is recommended you uninstall it totally and then download a new copy from

IEFDMCKS stands for Internet Explorer Free Download Manager CKS

Iefdmcks.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 iefdmcks.dll.

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

Iefdmcks.dll file information

The process known as iefdmcks.dll belongs to software Free Download Manager (version 2.1, 2.1 - Free Downloads) by unknown.

Description: Iefdmcks.dll is not essential for the Windows OS and causes relatively few problems. The iefdmcks.dll file is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\ or in a subfolder of the user's "Documents" folder. The file size on Windows 10/8/7/XP is 81,920 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 CC59E0F9-7E43-44FA-9FAA-8377850BF205. The process has no file description. The program is not visible. The iefdmcks.dll file is able to monitor web browsers. There is no detailed description of this service. The iefdmcks.dll file is not a Windows core file. Therefore the technical security rating is 81% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you are having problems with iefdmcks.dll, you can also uninstall Free Download Manager from your computer using the Control Panel applet Uninstall a Program, use the software publisher’s support or search for an update on the vendor’s website.

Recommended: Identify iefdmcks.dll related errors

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

Part of FDM a very useful tool
aktiviert FDM bei downloadstart
Nemam pojma
it is from freedownload manager
  Kay   (further information)
Belongs to Free Download Manager. Haven't had any problems with it for more than a year.
Free Download Manager Ads-On
  Steffen   (further information)
Download manager - not dangerous but does contain spyware.
Its for Program Free Download Manager, watches your clicks to see if it needs to download stuff
  Jonny-G   (further information)
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of iefdmcks.dll: based on 43 votes with 9 reviews. 34 users think iefdmcks.dll is essential for Windows or an installed application. 2 users think it's probably harmless. 7 users think it's neither essential nor dangerous. 2 users don't grade iefdmcks.dll ("not sure about it").

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Best practices for resolving iefdmcks issues

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

iefdmcks.dll [all]