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What is ytsingleinstance.dll?

Part of Yahoo! Single Instance for Mail by Yahoo! Inc

What is it?

Y! Mail Single Instance speeds up your navigation to Yahoo! Mail. When Y! Mail Single Instance is enabled, Toolbar keeps track of open Yahoo! Mail sessions and navigates you to those open sessions. This helps you save time since the browser no longer has to navigate to Yahoo! Mail.
Download Boost and enjoy your PC. Speed up Yahoo! Single Instance for Mail and optimize your PC.

How is ytsingleinstance.dll loaded?

Internet Explorer BHO - The ytsingleinstance.dll BHO has a registered CLSID of {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081}. A Browser Helper Object (BHO) is a module designed as a plugin for Microsoft's Internet Explorer web browser to provide added functionality. A BHO can introduce visible changes to a IE's interface, such as installing toolbars, but it can also run without any change to the interface.
Yahoo! Single Instance for Mail is loaded by:

Community

What is the community is seeing?What is the community is doing?
About 0.3% of all Boost users have the ytsingleinstance.dll file.Of the 0.3% of ytsingleinstance.dll users, 14.3% have disabled it.
Typical file (disk image) location:
C:\Program Files\yahoo!\companion\installs\cpn0\ytsingleinstance.dll

Are there other versions of Yahoo! Single Instance for Mai...?

What else is related?

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.196608)

About Yahoo! Inc

Yahoo was founded in 1994 by David Filo and Jerry Yang. It has since evolved into a major internet brand with search, content verticals, and other web services. More...
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File details

File name: ytsingleinstance.dll
Publisher: Yahoo! Inc (verified)
Name: Yahoo! Single Instance for Mail
Description: Yahoo! Single Instance for Mail
Version: 2011, 9, 25, 01
Product version: 8, 3, 11, 4
Size: 159.3 KB
Original file name: YTSingleInstance.dll

Digital certificate

Issued to: Yahoo! Inc.
Certificate authority: VeriSign
Expiration date: 9/2/2012

Internet Explorer BHO details

CLSID: {FDAD4DA1-61A2-4FD8-9C17-86F7AC245081}

Image hashes

MD5: 47db61ac8f7858e041e9d942a6081110
SHA-1: 3be99148a80cc46eeeff9e7f03f52373e6c559de

PE image details

File packed: No
Import Table
advapi32.dll
kernel32.dll
ole32.dll
oleacc.dll
rpcrt4.dll
shlwapi.dll
user32.dll
wininet.dll
Export Table
dllcanunloadnow
dllgetclassobject
dllregisterserver
dllunregisterserver
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