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What is YTSingleInstance.dll?

YTSingleInstance.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. The following information can help you determine if YTSingleInstance.dll belonging to the Windows system or an application you can trust.

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YTSingleInstance.dll file information

The process known as Yahoo! Single Instance for Mail belongs to software Yahoo! Single Instance for Mail or Yahoo! Toolbar or Heroes of Might and Magic IV or Sony on Yahoo! Essentials or Boris Graffiti or Adobe Photoshop Lightroom by Yahoo! (www.yahoo.com).

Description: YTSingleInstance.dll is not essential for the Windows OS and causes relatively few problems. YTSingleInstance.dll is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of the "My Files" folder or in a subfolder of "C:\Documents and Settings". Known file sizes on Windows 7/XP are 160,496 bytes (41% of all occurrences), 163,128 bytes and 9 more variants. http://www.file.net/process/ytsingleinstance.dll.html 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your Internet browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as your browser itself. BHOs are often used by adware and spyware. IDs used by this BHO are FDAD4DA1-61A2-4FD8-9C17-86F7AC245081. YTSingleInstance.dll is a Verisign signed file. The program is not visible. The YTSingleInstance.dll file is able to monitor Internet browsers. It is digitally signed. There is no detailed description of this service. The YTSingleInstance.dll file is not a Windows core file. Therefore the technical security rating is 48% dangerous, however also read the users reviews.
If you have any problems with YTSingleInstance.dll, you may also completely remove Yahoo! Toolbar or NVIDIA ForceWare Network (Control Panel⇒Add/Remove programs).

Recommended: Identify YTSingleInstance.dll related errors

Important: Some malware camouflages itself as YTSingleInstance.dll, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the YTSingleInstance.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

I Scanned this file with 40 diffrent anti virus programs on an online site called VirusTotal Free Online Virus And Malware Scan and it found no viruses or malware so i think its safe to say this file is A-OK!
It's a BHO. (Browser Helper object). It starts everytime you open the internet browser and is not dangerous unless it is a disguised malware program.
  Montekristo   (further information)

Summary: Average user rating of YTSingleInstance.dll: based on 2 votes with 2 user comments.
2 users think YTSingleInstance.dll is essential for Windows or an installed application.

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YTSingleInstance scanner

Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

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YTSingleInstance.dll [all]