Word Proser by Wordprosers LLC is a free ad-supported software “that makes searching and translating information you find online easy. Take any text you see online, highlight it, and Word Proser will show the Wikipedia and Bing results in an in-page window. That means you don’t have to open up a new window, go to a search engine, and type in your search. Word Proser puts relevant information just a highlight away”.

Once you highlight a word on a webpage, you will see a small ‘WP’ icon that opens a window with Wiki/Bing search results for this word, as well as translation and thesaurus tabs:


 
The program is active on http:// websites only; when a connection is encrypted (https:// websites), you won't see the WordProser icon while highlighting words.

Before we provide you with removal instructions, please find below a few facts about this program.
It is usually distributed by bundling to free software using pay-per-install marketing method; so it may sneak to your PC as a part of another installation without you noticing this.

Word Proser may generate different intrusive advertisements; it is usually mentioned during program installation:

“In order to keep Word Proser free you may see banner, text, pop-up, pop-under, interstitial, video, coupon, and/or in-text advertisements through the software on websites where features operate and during general internet usage. An example of these ads is shown below. These advertisements are not the responsibility of the underlying site. Word Proser shares non-personally identifiable information, including search and URL history, to advertising partners to improve product performance.”

A process called ‘wpsvc.exe’ automatically starts with every Windows boot, even if you don’t use your browser:


 
Several antivirus companies detect some of Word Proser files:

•    wpsvc.exe (C:\Program Files\WordProser_1.10.0.1\Service\wpsvc.exe)
•    WordProserClientIE.dll (C:\ProgramFiles(x86)\WordProser_1.10.0.1\IE\WordProserClientIE.dll)
•    wordproser-setup-1.10.0.2.exe – installation setup file
•    wpnfd.sys (C:\Windows\System32\drivers\wpnfd_1_10_0_1.sys)

Word Proser Manual Removal Instructions

Note. This is a self-help guide. Use it at your own risk. This article is provided "as is" and to be used for information purposes.

1.    Before you start, please make sure you are logged as a system administrator. Also, please save a copy of your important files to an external hard drive/cloud storage.

2.    Close all your browsers if any.

3.    From your desktop, click on Windows Start button and choose Control Panel option (Windows 8 users: right-click on ‘Windows Start’  icon (by default, it is located in the left bottom corner of your screen), and choose Control Panel from the context menu):

•    click ‘Programs and Features’ under the ‘Programs’ category (Windows Vista, 7 and 8)/‘Add or Remove Programs’ (Windows XP),

4.    Please find ‘Word Proser’ in the list, click on ‘Uninstall’ button above Programs list, and follow the prompts to complete the process (once done, a webpage confirming the same should open):


 
5.    Usually Word Proser removes all its traces during uninstall, but just in case, please make sure that your browser is clean. Program is not usually added to Google Chrome (although it is mentioned as a compatible browser on the home page), so we provide here instructions for Mozilla and Internet Explorer only.

Mozilla Firefox

•    Click on the Menu button  in the right upper corner of Firefox window -> find Add-ons section -> check ‘Extensions’ tab, and if you see Word Proser or any other suspicious addons you are not aware of
•    Click on ‘Remove’ button and restart Firefox:


 
Internet Explorer

•    When IE window is opened, press Alt+x keys on your keyboard to open Tools menu -> and click on Manage Add-ons;
•    Open ‘Toolbars and Extensions’ section -> if you have WordProser here, right-click on it, and choose ‘Disable’, then restart Internet Explorer:


 
6.    Please make sure that hidden files in your Windows Explorer are visible: Start –> Control Panel (Appearance and Personalization) –> Folder Options –> ‘View’ tab –> find ‘Hidden files and folders’ and check a box ‘Show hidden files, folders, and drives’.

7.    Follow this path - C:\Users\YOUR_USER_NAME\AppData\Local\Temp (XP users: C:\Documents and Settings\YOUR_USER_NAME\Local Settings\Temp) -> highlight all the files/folders here -> press ‘Shift’+’Delete’ and click ‘Yes’ to completely clean this folder (Note. If you receive messages that some files cannot be removed, just skip the file in question).

8.    Please find the directories below and make sure that all the Word Proser folders (in bold) are removed:

C:\Program Files\WordProser_1.10.0.1
C:\Program Files (x86)\WordProser_1.10.0.1 (users with 32-bit OS don’t have this folder)
C:\Program Files (x86)\Mozilla Firefox\extensions\{6e7f6f9f-8ce6-4611-add2-05f0f7049ee6}

9.    Now, please install Ad-Aware to make sure you don’t have any infections on your machine:

•    Click here to download Ad-Aware, and follow installation instructions from Ad-Aware User Guide (‘Installation and Uninstallation’ -> ‘Ad-Aware Install’ section).
•    Perform a full scan of your PC with Ad-Aware (following Ad-Aware User guide: ‘Scanning System’ -> ‘Running a scan’ section).
•    Restart your PC.

10.   If you continue facing issues with Word Proser, please remove its traces from your registry. Before you start, please make sure you understand how important this PC section is. You cannot restore data from here once you delete something (‘Ctrl+Z’ never works in Registry Editor). And if you delete an incorrect component by mistake, it may damage your OS or make it unusable.

•    To open the Registry, press ‘Win+R’ keys on your keyboard -> in the opened window type regedit and press ‘Enter’.
•    Highlight main registry section called ‘Computer’ -> press Ctrl+F keys on your keyboard -> make sure Keys, Values, Data check-boxes in the ‘Find’ window are checked -> type wordproser in the search field and click OK. Search results will highlight a key/value/data that contains Word Proser components. If you find the exact match with the name of program you want to remove, right click on the element in question and choose ‘Delete’ from the context menu.
•    Use F3 key to continue the search and to find all the necessary files.
•    Exit the registry editor.
•    Reboot your PC.

Lastly, it is recommended to always keep your antivirus program up-to-date with a real-time protection turned on, and perform weekly full scans to stay protected at all times.