What is mzvkbd3.dll?

Mzvkbd3.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 mzvkbd3.dll is a Windows system file or if it belongs to an application that you can trust.

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Mzvkbd3.dll file information

The process known as Mozilla (version 3 Virtual Keyboard) belongs to software Kaspersky Anti-Virus (version 2011, 2010, 2009) or Kaspersky Internet Security (version 2010) or STC ® Kaspersky ® Internet Security (version 2010) or Kaspersky PURE by Kaspersky Lab ( or Kaspersky Lab ZAO (

Description: Mzvkbd3.dll is not essential for Windows and will often cause problems. Mzvkbd3.dll is located in a subfolder of "C:\Program Files (x86)" or sometimes in a subfolder of the user's profile folder—for instance C:\Program Files (x86)\Kaspersky Lab\Kaspersky Internet Security 2010\ or C:\Program Files (x86)\Kaspersky Lab\Kaspersky Anti-Virus 2010\. Known file sizes on Windows 10/8/7/XP are 109,072 bytes (57% of all occurrences), 109,240 bytes, 109,144 bytes or 79,112 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. It is a Verisign signed file. The program is not visible. The file is digitally signed. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. Mzvkbd3.dll is not a Windows system file. Mzvkbd3.dll is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 47% dangerous; but you should also compare this rating with the user reviews.

Uninstalling this variant: It is possible to do the following:
  • ask Customer Support to assist you
  • update the program to the latest version
  • uninstall the associated program (Start > Control Panel > Uninstall a Program > Kaspersky Internet Security or Kaspersky Anti-Virus 2011)

Recommended: Identify mzvkbd3.dll related errors

Important: Some malware camouflages itself as mzvkbd3.dll. Therefore, you should check the mzvkbd3.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

Mozilla 3 Virtual Keyboard
Dangerous when windows starts up and crashes.
mzvkbd3.dll belongs to Mozilla 3 Virtual Keyboard developed by Kaspersky Lab located in C:\PROGRA~1\KASPER~1\KASPER~1\mzvkbd3.dll

Summary: Average user rating of mzvkbd3.dll: based on 4 votes with 3 user comments. One user thinks it's probably harmless. One user suspects danger. 2 users think mzvkbd3.dll is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving mzvkbd3 issues

A clean and tidy computer is the key requirement for avoiding problems with mzvkbd3. 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 mzvkbd3.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

mzvkbd3.dll [all]