What is apcrtldr.dll?

Apcrtldr.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if apcrtldr.dll is a Windows system file or if it belongs to an application that you can trust.

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

Apcrtldr.dll file information

The process known as apcrtldr.dll belongs to software Settings Alerter by iMesh ( or Bandoo Media ( or Koyote-Lab.

Description: Apcrtldr.dll is not essential for the Windows OS and causes relatively few problems. The apcrtldr.dll file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 488,448 bytes (17% of all occurrences), 474,112 bytes and 14 more variants. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. There is no file information. It can change the behavior of other programs or manipulate other programs. The program has no visible window. The apcrtldr.dll file is certified by a trustworthy company. The service has no detailed description. The file is not a Windows core file. Apcrtldr.dll is able to monitor applications and manipulate other programs. Therefore the technical security rating is 68% dangerous.

Uninstalling this variant: In case of problems with apcrtldr.dll, you can uninstall the associated program (Start > Control Panel > Uninstall a Program > Settings Alerter).

Recommended: Identify apcrtldr.dll related errors

Important: Some malware also uses the file name apcrtldr.dll, for example Adware.SearchSuite.I (detected by F-Secure), and Win32:Malware-gen (detected by Avast). Therefore, you should check the apcrtldr.dll process on your PC to see if it is a threat. If apcrtldr.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.


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Best practices for resolving apcrtldr issues

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

Other processes

apcrtldr.dll [all]