Is mwoltb.dll safe or is this malware?

Purpose of mwoltb.dll:

mwoltb.dll file purpose and description:

_MWOLTB.DLL is a file that runs as BHO file in your web browser. Be sure to verify the exact hard drive location shown below. Sometimes spyware writers use simliar names in an attempt to fool you, so its important to validate the folder location whenever you have any concerns, as this helps validate it as a good file and not a bad file, etc. This file is part of the dictionary software tool for use with the Merriam Webster toolbar on IE. This file is considered safe and is not known to be a spyware or adware related program, as it simply provides access easier to their dictionary page. (See the details below for the actual location of this file.) (See the details below for the actual location of this file.)

Actual file or task name: (Note that you can view the entire list here)

File type:
This is a DLL program.

Where is the file or folder located on my computer?
This program is currently located at C:\WINDOWS\_MWOLTB.DLL

General information:
Be aware that many tasks will be similiar names to existing tasks or processes. You can always view the running tasks on your computer by pressing ctrl-alt-del to view the windows "task manager", and then view the "processes" tab. This will show you all tasks running or currently active on your PC. Although this shows you all running tasks, it does not show dll file thats are loaded, as they get loaded as part of other processes. Many spyware writers attempt to hide their files on your computer, for example, mwoltb.dll may be intentionally misspelled to look like a similiar task, or spyware may be named very similiar to a Windows system task. The reason they do this is so you cannot easily recognize the name in your tasklist as I have mentioned above. Make sure always check the location of the file if you are concerned. You can always find the location of mwoltb.dll on your computer by using your Windows search options, but I will also try to list the file location of every file described on this website, so you can verify the correct location. You can view the entire tasklist directory with the link below.

Jump to the entire processes list here!