How to remove the mwsbar virus

Most antivirus programs identify mwsbar.dll as malware.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

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Mwsbar.dll file information

The process known as My Web Search Bar or My Web Search belongs to software My Web Search Bar for Internet Explorer, FireFox, email clients, and messenger clients or My Web Search Bar for Internet Explorer, FireFox, Netscape, email clients, and messenger clients by ( or Mindspark Interactive Network (

Description: Mwsbar.dll is not essential for Windows and will often cause problems. Mwsbar.dll is located in a subfolder of "C:\Program Files (x86)"—primarily C:\Program Files (x86)\MyWebSearch\bar\2.bin\. Known file sizes on Windows 10/8/7/XP are 775,696 bytes (22% of all occurrences), 833,032 bytes and 11 more variants. 
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 07B18EA1-A523-4961-B6BB-170DE4475CCA. Mwsbar.dll is not a Windows core file. The program has no visible window. Mwsbar.dll is able to change the behavior of, or monitor Internet Explorer. The file is certified by a trustworthy company. It is a Verisign signed file. Mwsbar.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 40% dangerous, but you should also take into account the user reviews.

Uninstalling this variant: In case of any problems with mwsbar.dll, you can do the following:

Recommended: Identify mwsbar.dll related errors

External information from Tony Klein:

Important: You should check the mwsbar.dll process on your PC to see if it is a threat. If My Web Search Bar 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.


User Comments

Not alot. I received this through a download that was advertised on FaceBook for popular
  Larry Burgess   (further information)
it's instaled without your knowledge and runs without same so it shouldn't be there
Impossible to remove mwsbar.dll from Windows XP Registry
  JeRkZ   (further information)
Spyware from MyWebSearch. Self-Installed. Easily Removed.
error message n its a spyware. advised removal comes with windows live toolbar installed wid msn messanger
For those who get the MWSBAR.DLL error at startup. I had the same problem and here is how I got rid of it. Go to the link below and re-install MyWebSearch Bar. After installing, close internet explorer and the re-open it. There will now be a MyWebSeach button in the tool bar. Click on this and a menu pops up. On this menu is "Uninstall MyWebSearch". Click on this to uninstall it. Again close internet explorer and re-open it. The tool bar is gone and error will be gone too. At least it worked for me.
  JohnC   (further information)
i want remov viros in my competar i have this viros stoped my task manager virus quarantine\
Mine came with a Smiley Central download. I like Smiley Central, but am unfond of Myweb searchbar. I found two sites, then stopped looking, for removal instructions:
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of mwsbar.dll: based on 32 votes with 9 reviews. 6 users think mwsbar.dll is essential for Windows or an installed application. 4 users think it's probably harmless. 8 users think it's neither essential nor dangerous. 6 users suspect danger. 8 users think mwsbar.dll is dangerous and recommend removing it. 7 users don't grade mwsbar.dll ("not sure about it").

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Best practices for resolving mwsbar issues

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

mwsbar.dll [all]