What is yt.dll?

Yt.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. You can fix your yt.dll problem by downloading the correct yt.dll file. The following information can help you determine if yt.dll is a Windows system file or if it belongs to an application that you can trust.

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Yt.dll file information

The process known as Yahoo! Toolbar belongs to software Yahoo! Toolbar or Sony on Yahoo! Essentials or Acoustica Effects Pack or AT&T Yahoo! Applications or SBC Yahoo! Applications or TheSky6 or Whiz Kid US - Web World - The or ZyGoVideo 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" or sometimes in a subfolder of C:\Windows. Known file sizes on Windows 8/7/XP are 440,384 bytes (26% of all occurrences), 399,352 bytes and 58 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.
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 ⇒ Add/Remove programs ⇒ Yahoo! Toolbar or Yahoo! Messenger.

Recommended: Identify yt.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as yt.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the yt.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

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
yt.dll suffenly showed itself and causes freezes. Everytime it comes I have to cntl alt del to get rid of the freeze
Yahoo! Toolbar. Very annoying and invasive. Like any piece of malware this is usually hidden in another download.
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of yt.dll: based on 25 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. 8 users suspect danger. One user thinks yt.dll is dangerous and recommends removing it. 2 users don't grade yt.dll ("not sure about it").

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Best practices for resolving yt issues

A clean and tidy computer is the key requirement for avoiding problems with yt. 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 doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the yt.dll process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

yt.dll [all]