What is TmIEPlg.dll?

TmIEPlg.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 Trend Micro NSC IE Plug-In.

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

TmIEPlg.dll file information

The process known as Trend Micro NSC IE Plug-In belongs to software Trend Micro Network Security Components or Trend Micro Client/Server Security Agent or Trend Micro Titanium by Trend Micro (

Description: TmIEPlg.dll is not essential for the Windows OS and causes relatively few problems. TmIEPlg.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 185,872 bytes (36% of all occurrences), 218,376 bytes, 185,680 bytes or 194,064 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 1CA1377B-DC1D-4A52-9585-6E06050FAC53. The program has no visible window. It is able to change the behavior of, or monitor Internet Explorer. TmIEPlg.dll is certified by a trustworthy company. The file is not a Windows core file. TmIEPlg.dll is a Verisign signed file. TmIEPlg.dll is able to hide itself. Therefore the technical security rating is 35% dangerous.

Uninstalling this variant: If you run into problems with TmIEPlg.dll, you can also go to the software publisher,, for advice or uninstall Trend Micro Client/Server Security Agent or Trend Micro Titanium from your computer using the Control Panel applet Uninstall a Program.

Recommended: Identify TmIEPlg.dll related errors

Important: Some malware camouflages itself as TmIEPlg.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the TmIEPlg.dll process on your PC to see if it is a threat. If Trend Micro NSC IE Plug-In 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 TmIEPlg issues

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

TmIEPlg.dll [all]