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What is the _mwoltb.dll component needed for?

Simply stated, a DLL file is an unnamed executable file. It cannot be directly invoked, but it can be called by any executable Windows program.

The _mwoltb.dll process is also known as MWOLTB Module and is a part of Merriam-Webster Online Toolbar. This software is produced by unknown. An obsolete or defective version of _mwoltb.dll can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about _mwoltb.dll MWOLTB Module

_mwoltb.dll is not part of Windows, but it is important nonetheless. _mwoltb.dll is found in the C:\Windows directory. The file size is 385,024 bytes.
This DLL file is a browser plug-in. This could mean that your Internet Explorer has been given additional useful capabilities. However, not all such plug-ins are worthwhile. Some just display advertisements or surreptitiously change your browser settings. The unique identifer of the browser plug-in is 5ADA9CAC-04F9-4DD2-ABFD-74D673BE8624. File properties have not been internally documented by the producer or developer. The file is not a Windows system file, but it is nontheless located in the C:\Windows folder. The application does not have a visible window, and does not appear on the taskbar. As a plug-in of Windows Internet Explorer, this file has the ability to look over your shoulder as you browse the Web. The service has no characteristics or description of its own. This is unusual. The file does not come from Microsoft and is not part of the operating system. For this reason, 76% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves _mwoltb.dll. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about _mwoltb?

Has been installed by Merriam Webster Toolbar, interact with browser, don't seem to hiddenly disclose any information. (further information...)
Romolo
Believe it to be from a reliable source
Archie McDowall
Belongs to an online dictionary toolbar. Its handy
Ultimatt
allows Merriam-Webster Online toolbar to be added to the toolbar list in Internet Explorer. Checked this by not allowing _mwoltb.dll to run. My Spyware Terminator freeware application detected it when starting IE.
Ron Loewenbein
Installed as part of the Merriam-Webster Online Toolbar. Seems harmless. (further information...)
Nanashi

Summary: 3 users judge _mwoltb.dll to be an essential file that should not be touched. source: file.net

How to uninstall Merriam-Webster Online Toolbar

_mwoltb.dll  MWOLTB Module fix

To remove MWOLTB Module from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for Merriam-Webster Online Toolbar in the list of available programs.
  5. Click Uninstall.

How to tell if _mwoltb.dll (MWOLTB Module) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of MWOLTB Module. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for MWOLTB Module or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or _mwoltb.dll is causing problems for you, a good Registry Cleaner may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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