What is yt.dll?

Yt.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. You can fix your yt.dll problem by downloading the correct yt.dll file. The following paragraph provides more information about Yahoo! Toolbar.

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

Yt.dll file information

The process known as Yahoo! Toolbar belongs to software Yahoo Toolbar or Sony on Yahoo! Essentials or Toolbar or Whiz Kid US - Web World - The or AT&T Yahoo! Applications or Maple 11 or SolidWorks (version 2008 API SDK) or Sun ODF Plugin for Microsoft by Yahoo! (

Description: Yt.dll is not essential for Windows and will often cause problems. Yt.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 440,384 bytes (18% of all occurrences), 882,416 bytes and 57 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 02478D38-C3F9-4EFB-9B51-7695ECA05670. The program has no visible window. It is able to change the behavior of, or monitor Internet Explorer. The service has no detailed description. It is a Verisign signed file. Yt.dll is not a Windows core file. The file is digitally signed. Yt.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 48% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with yt.dll, you could also consult Yahoo’s Customer Service [1][2], check the vendor’s website for a newer version [1][2] or uninstall the program using the Control Panel ⇒ Uninstall a ProgramYahoo! Toolbar or Yahoo! Messenger.

Recommended: Identify yt.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as yt.dll. Therefore, you should check the yt.dll process on your PC to see if it is a threat. If Yahoo! Toolbar 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.


User Comments

yyt.dll it is blocked from removal from my computer. It has overridden other programs. Having difficulty removing. Afraid I will mess up my computer
have seen it in action center problem details
  cecelia benefiel  
Yt.dll is part of yahoo toolbar. Delete yahoo toolbar and error will be resolved.
opened up the ymail and got this YT.DLL problem . yahoo is the cause , let them chase it down . yt has the yahoo name all over it ..
  angry at starbucks 5 08-2011  
For Yahoo! Toolbar. If you don't like it disable it via the IE add-ons
IE would not connect due to "problem with add-on yt.dll". Disabled add
Yahoo toolbar.
  Dave   (further information)
Adware, part of Yahoo! Toolbar, causes popups
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of yt.dll: based on 27 votes with 9 reviews. 7 users think yt.dll is essential for Windows or an installed application. 3 users think it's probably harmless. 6 users think it's neither essential nor dangerous. 9 users suspect danger. 2 users think yt.dll is dangerous and recommend removing it. 2 users don't grade yt.dll ("not sure about it").

Do you have additional information?
What do you know about yt.dll:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving yt issues

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

yt.dll [all]