84,488,480 programs installed

Should I remove AT&T Yahoo! Messenger?

What percent of users and experts removed it?
21% remove it79% keep it
Overall Sentiment
What do people think about it?
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How common is it?
Global Rank #36,707
United States Rank #19,670
Reach 0.0030%

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AT&T Yahoo! Messenger

What is AT&T Yahoo! Messenger?

AT&T Yahoo! Messenger is an AT&T branded version of Y! Messenger.

About  (from Yahoo!)

Yahoo! Messenger is an all-in-one communication tool, and anyone, anywhere in the world, with a computer and Internet connection can use it.


AT&T Yahoo! Messenger is a software program developed by Yahoo!. During setup, the program creates a startup registration point in Windows in order to automatically start when any user boots the PC. Upon being installed, the software adds a Windows Service which is designed to run continuously in the background. Manually stopping the service has been seen to cause the program to stop functing properly. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. It adds an extension to the user's Internet Explorer web browser. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The primary executable is named yahoomessenger.exe. The setup package generally installs about 61 files and is usually about 27.54 MB (28,873,879 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows Vista (SP2) and Windows 7 (SP1). Most users that have installed this software come from the United States.

Program detailsProgram details

URL: www.yahoo.com
Installation folder: C:\Program Files\Yahoo!\Messenger
Uninstaller: C:\Program Files1\Yahoo!\MESSEN~1\UNWISE.EXE /U C:\Program Files1\Yahoo!\MESSEN~1\INSTALL.LOG
(Wise Installer is used for installing and uninstalling this software.)
Estimated size: 27.54 MB

Program filesFiles installed by AT&T Yahoo! Messenger

Program executable:yahoomessenger.exe
Name:Yahoo! Messenger
Path:C:\Program Files\yahoo!\messenger\yahoomessenger.exe
Additional files:
  • yacscom.dll - Yahoo! Audio Conferencing Control
  • PhotoShare.dll - Yahoo! Messenger Photo Sharing
  • res_msgr.dll - AT&T Yahoo! Messenger (Resource Module)
  • yalertcenterM.dll - Yahoo! Alert Center
  • ft60.dll - Yahoo! Messenger (File Transfer Module)
  • idle.dll - Idle Module
  • StpWd.dll - Call Setup Assistant
  • yaudiomgr.dll - YAudioMgr Module
  • YImage.dll - YImage Module
  • Yml.dll - YML Module
  • ymsgip.dll - Client Registration Module
  • Ymsgr_tray.exe - Yahoo! Messenger Tray
  • YPagerChecker.dll - Yahoo! Messenger Checker
  • ypagerps.dll - YPagerPS Module (COM Interface)
  • ypagerps1.DLL
  • ypagerps2.DLL
  • ypagerps3.DLL
  • ypagerps4.DLL
  • yv_res.dll - Voice Resources Module
  • yvoiceui.dll - YVoiceUI Module
  • ywcupl.dll - Yahoo! Webcam (Webcam Upload Networking and Imaging)
  • ywcvwr.dll - Webcam Viewer Networking and Imaging
  • ConnectionWizard.dll - ConnectionWizard
  • core_video.dll - core_video
  • nspr4.dll - nspr4
  • RGX.dll - RGX
  • rmc_audio.dll - rmc_audio
  • rmc_video.dll - rmc_video
  • YCPFoundation.dll - YCPFoundation
  • YHTTP.dll - YHTTP
  • YIniDom.dll - YIniDom
  • ylog.dll - ylog
  • ymdm_audio.dll - ymdm_audio
  • ymdm_video.dll - ymdm_video
  • ymsdk.dll - ymsdk
  • ymsglite.dll - YMSGLite
  • YPluginRegistry.dll - YPluginRegistry
  • kdu_v32R.dll (by The University of New South Wales) - Kakadu Software Tools for JPEG2000 (kdu_v32 -- Kakadu core DLL)
  • yacsui.dll - Yahoo! Audio Conferencing UI
  • id3lib.dll (by http://www.id3lib.org/) - ID3lib Dynamic Link Library
  • yui.dll - yui Dynamic Link Library
  • libexpat.dll

Program behaviorsBehaviors exhibited

Internet Explorer Extension
  • YahooMessenger.exe is installed as an Internet Explorer extension as 'Messenger Class' with a class of {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96}.
2 Scheduled Tasks
  • YahooMessenger.exe is scheduled as a task with the class '{D556CEAB-DA41-4596-99DC-3BAE7F8CA0DF}' (runs on registration).
  • Ymsgr_tray.exe is scheduled as a task named 'YahooMessngr Tray' (runs on boot).
2 Scheduled Tasks (Boot/Login)
  • YahooMessenger.exe is automatically launched at startup through a scheduled task named 1.
  • Ymsgr_tray.exe is automatically launched at startup through a scheduled task named YahooMessngr Tray.
  • YahooMessenger.exe runs as a service named 'McAfee Application Installer Cleanup (0285841475581559)' (0285841475581559mcinstcleanup).
Startup File (User Run)
  • YahooMessenger.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Yahoo! Pager' and executes as "C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" -quiet.
Startup File (User Run Once)
  • YahooMessenger.exe is loaded once in the current user (HKCU) registry as a startup file name 'Shockwave Updater' which loads as "C:\Windows\System32\Adobe\SHOCKW~1\SWHELP~1.EXE" -Update -1103472 -"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 1.1.4322; .
Startup File (All Users Run)
  • YahooMessenger.exe is loaded in the all users (HKLM) registry as a startup file name 'VideoDownloadConverter AppIntegrator 32-bit' which loads as C:\Program Files2\VIDEOD~2\bar\2.bin\AppIntegrator.exe.
2 Windows Firewall Allowed Programs
  • YahooMessenger.exe is added as a firewall exception for 'C:\cyber\Yahoo!\Messenger\YahooMessenger.exe'.
  • Ymsgr_tray.exe is added as a firewall exception for 'C:\Program Files1\Yahoo!\MESSEN~1\ymsgr_tray.exe'.
Network connections
  • YahooMessenger.exe connects to gops.use10.mobstor.vip.bf1.yahoo.com ( port 80).
  • YahooMessenger.exe connects to LB260.DOHA.COTENDO.net ( port 80).
  • YahooMessenger.exe connects to mpr6.ngd.vip.ch1.yahoo.com ( port 80).
  • YahooMessenger.exe connects to pinhole101p2.us1.voice.gq1.yahoo.com ( port 443).
  • YahooMessenger.exe connects to relay111p6.eu1.voice.ir2.yahoo.com ( port 443).
  • YahooMessenger.exe connects to sip102-p2.voice.ne1.yahoo.com ( port 443).
  • YahooMessenger.exe connects to sip102.voice.ne1.yahoo.com ( port 443).
  • YahooMessenger.exe connects to sip104.voice.ne1.yahoo.com ( port 443).
  • YahooMessenger.exe connects to sip105-p1.voice.ne1.yahoo.com ( port 443).
  • YahooMessenger.exe connects to sip105.voice.ne1.yahoo.com ( port 443).
  • Plus 30 more

Program resource utilizationResource utilization averages

Memory:64.79 MB
21.09 MB average
Total CPU:0.0167080693%
0.031193% average
Kernel CPU:0.00880538%
0.016088% average
User CPU:0.00790269%
0.015104% average
CPU cycles/sec:13,245,810
8,062,084 average
70 average
I/O reads/min:15.8 KB
435.61 KB average
I/O writes/min:2.2 KB
105.02 KB average
Memory:18.27 MB
Total CPU:0.0012829529%
Kernel CPU:0.00084124%
User CPU:0.00044171%
CPU cycles/sec:83,417
I/O reads/min:2.45 KB

How do I remove AT&T Yahoo! Messenger?

You can uninstall AT&T Yahoo! Messenger from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program AT&T Yahoo! Messenger, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove AT&T Yahoo! Messenger.

How do I reset my web browser?

If your web browser homepage and search settings have been modfied by AT&T Yahoo! Messenger you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome

Win Vista (SP2) 62%
Win 10 3%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 21%
Keep it 79%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows Vista 61.67%
Windows 7 18.33%
Windows XP 16.67%
Windows 10 3.33%
Which OS releases does it run on?
Windows Vista Home Premiu... 55.00%
Microsoft Windows XP 16.67%
Windows 7 Home Premium 13.33%
Windows Vista Home Basic 5.00%
Windows 10 Home 3.33%
Windows 7 Ultimate 3.33%

Distribution by countryGeography

100.00% of installs come from the United States
Which countries install it?
  United States 100.00%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 31.58%
Dell 29.82%
Toshiba 10.53%
Gateway 8.77%
Acer 7.02%
Sony 5.26%
ASUS 3.51%
Intel 1.75%
American Megatrends 1.75%
Common models
Dell Inspiron 530 7.02%
Compaq-Presario KJ384AA-A... 3.51%
Dell Dell DV051 3.51%
Dell Inspiron 1545 3.51%
eMachines ET1161-07 3.51%
TOSHIBA Satellite M305 3.51%

About Yahoo!

Yahoo! is a major internet brand that provides search, contents, and other web services.
Publisher URL: www.yahoo.com


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