What is alotBHO.dll?

The genuine alotBHO.dll file is a software component of ALOT by Vertro.
AlotBHO.dll is a DLL (Dynamic Link Library) file that belongs to the ALOT program, an adware program designed to monitor user Internet access in order to deliver targeted advertisement through the Internet browser. DLL files store data, code and resources needed by one or more programs in order to function correctly. This file is a Browser Helper Object (BHO) that provides data for the ALOT toolbar that resides in the Internet Explorer. A BHO generally adds program-relevant functionality to a web browser. This file contains information on troubleshooting. This is not a critical Windows component and should be removed if known to cause problems. The ALOT program has been listed as adware and a potentially unwanted program (PUP) by several antivirus websites. The program monitors user Internet history as well as regular computer activity and finds relevant advertising to deliver directly into the user's Internet browser. It is recommended to remove this program as soon as possible. Vertro, Inc. is an American company that develops marketing software for corporate applications. The company was founded in 1997 and is based in New York, USA.

ALOTBHO stands for ALOT Browser Helper Object Dynamic Link Library

AlotBHO.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about alot.dll.

Click to Run a Free Scan for alotBHO.dll related errors

AlotBHO.dll file information

The process known as alot.dll belongs to software ALOT Toolbar or Barre d'outils ALOT or ALOT Symbolleiste or Barra de herramientas ALOT by Vertro (

Description: AlotBHO.dll is not essential for the Windows OS and causes relatively few problems. AlotBHO.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 817,576 bytes (23% of all occurrences), 812,840 bytes and 7 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 14CEEAFF-96DD-4101-AE37-D5ECDC23C3F6. The program is not visible. It is a Verisign signed file. It is digitally signed. It is not a Windows system file. AlotBHO.dll is able to monitor web browsers. AlotBHO.dll is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 34% dangerous.

Uninstalling this variant: If problems with alotBHO.dll occur, you can do the following:
  1) safely remove the program using the uninstall program of ALOT Toolbar or Barre d'outils ALOT (Control Panel ⇒ Uninstall a Program)
  2) visit the vendor's support site.

Recommended: Identify alotBHO.dll related errors

Important: Some malware camouflages itself as alotBHO.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the alotBHO.dll process on your PC to see if it is a threat. If alot.dll 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.


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Best practices for resolving alotBHO issues

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

alotBHO.dll [all]