What is shlext.dll?

Shlext.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 shlext.dll is a Windows system file or if it belongs to an application that you can trust.

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Shlext.dll file information

The process known as AntiVirus context menu belongs to software Avira AntiVir Personal - Free or Avira AntiVir Personal - Free Antivirus or Avira AntiVir PersonalEdition or Avira AntiVir Premium or Avira Premium Security Suite or Avira Product Family or AntiVir Desktop by Avira GmbH ( or Avira Operations GmbH & Co. KG.

Description: Shlext.dll is not essential for the Windows OS and causes relatively few problems. The shlext.dll file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 65,793 bytes (30% of all occurrences), 86,376 bytes and 11 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. The program has no visible window. The service has no detailed description. It can change the behavior of other programs or manipulate other programs. Shlext.dll is not a Windows core file. Shlext.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 65% dangerous, however you should also read the user reviews.

Uninstalling this variant: You have the option to do the following:
  • visit the support page [1][2]
  • check the vendor’s website for a newer version [1][2]
  • uninstall the software Avira AntiVir Personal - Free or Avira AntiVir Premium using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)

Recommended: Identify shlext.dll related errors

Important: Some malware camouflages itself as shlext.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the shlext.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

erzeugt den kontextmenüeintrag "überprüfen mit antivir"
    (further information)
Shell extension von dem AntiVir tool "AntiVir".
  Hendrik Granna   (further information)
gehört zu antivir personel editionclassic

Rating chart

Summary: Average user rating of shlext.dll: based on 7 votes with 4 user comments. 5 users think shlext.dll is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks shlext.dll is dangerous and recommends removing it.

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Best practices for resolving shlext issues

A clean and tidy computer is the key requirement for avoiding problems with shlext. 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.

To help you analyze the shlext.dll process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

shlext.dll [all]