What is PCTAVShellExtension.dll?

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

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

PCTAVShellExtension.dll file information

The process known as Explorer Extension belongs to software PC Tools AntiVirus by PC Tools Research Pty (

Description: PCTAVShellExtension.dll is not essential for the Windows OS and causes relatively few problems. The PCTAVShellExtension.dll file is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\. Known file sizes on Windows 10/8/7/XP are 98,304 bytes (92% of all occurrences) or 112,528 bytes. 
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. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. The PCTAVShellExtension.dll file is not a Windows core file. PCTAVShellExtension.dll is able to monitor applications. PCTAVShellExtension.dll appears to be a compressed file. Therefore the technical security rating is 65% dangerous.

Uninstalling this variant: In case you experience problems using PCTAVShellExtension.dll, you may also uninstall the program using the Control Panel ⇒ Uninstall a ProgramPC Tools AntiVirus.

Recommended: Identify PCTAVShellExtension.dll related errors

Important: Some malware camouflages itself as PCTAVShellExtension.dll. Therefore, you should check the PCTAVShellExtension.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.


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Best practices for resolving PCTAVShellExtension issues

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

To help you analyze the PCTAVShellExtension.dll process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

PCTAVShellExtension.dll [all]