What is aimtb.dll?

The genuine aimtb.dll file is a software component of AIM Toolbar for Internet Explorer by AOL.
Aimtb.dll is a DLL (Dynamic Link Library) file that belongs to the AIM Toolbar for Internet Explorer, a browser extension that adds functionality to AOL Instant Messenger. DLL files store data, code and resources needed by one or more programs in order to function correctly. This process is a BHO (browser helper object), a plugin designed to add functionality to Microsoft's Internet Explorer. This is not an essential Windows process and can be disabled if known to create problems. The AIM Toolbar attaches a slim toolbar to the Internet Explorer window which provides shortcut buttons that offer quick links to the Internet, AOL Instant Messenger, pop-up blocker, and browser history cleaner. The program offers customization in the form of more widgets and themes. America Online (AOL) is an American telecommunications company that was established in 1985 by Jim Kimsey. It was originally called Quantum Computer Services and provided online services. AOL Inc. is based in New York City and develops and invests in web sites and brands. AOL distributes digital content, markets products, and offers numerous services to consumers, publishers, and advertisers.

AIMTb stands for AIM Toolbar

Aimtb.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 AIM Toolbar IE Dynamic Link Library.

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

Aimtb.dll file information

The process known as AIM Toolbar IE Dynamic Link Library belongs to software AIM Toolbar for Internet Explorer or AOL Messaging Toolbar for Internet Explorer by AOL (

Description: Aimtb.dll is not essential for the Windows OS and causes relatively few problems. Aimtb.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,279,272 bytes (50% of all occurrences), 1,275,176 bytes, 1,357,136 bytes, 2,076,280 bytes or 1,303,912 bytes. 
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 b0cda128-b425-4eef-a174-61a11ac5dbf8. The program is not visible. The file is a Verisign signed file. The file is able to change the behavior of, or monitor Internet Explorer. The file is certified by a trustworthy company. It is not a Windows system file. You can uninstall this program in the Control Panel. Aimtb.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 27% dangerous.

Uninstalling this variant: In the event of any problems with aimtb.dll, you can remove the entire program AIM Toolbar or waol using Windows Control Panel.

Recommended: Identify aimtb.dll related errors

Important: Some malware camouflages itself as aimtb.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the aimtb.dll process on your PC to see if it is a threat. If AIM Toolbar IE Dynamic Link Library 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 aimtb issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active aimtb process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the aimtb.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 cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

aimtb.dll [all]