84,488,480 programs installed

Should I remove Yahoo! Install Manager?

What percent of users and experts removed it?
20% remove it80% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #3,828
United States Rank #2,496
Reach 0.1419%
Lifespan of installation (until removal)
< 19.02 days
560.97 days >
Average installed length: 294.75 days

Typically installed together

Other programs by Yahoo!

Yahoo! Install Manager

What is Yahoo! Install Manager?

Yahoo Install Manager manages Yahoo program downloads and installations. The install manager keeps track of such programs and assists in the installations to put things in their proper places.


Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. 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 a Browser Helper Object (BHO) to Internet Explorer. The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. When installed, it will add a context menu handler to the Windows shell in order to provide quick access to the program. The main program executable is YInstHelper.dll. The software installer includes 238 files and is usually about 35.34 MB (37,053,821 bytes).

Program detailsProgram details

URL: www.yahoo.com
Installation folder: C:\Program Files\Yahoo!\Common
Uninstaller: C:\WINDOWS\system32\regsvr32 /u C:\Program Files1\Yahoo!\Common\YINSTH~1.DLL
Estimated size: 35.34 MB

Program filesFiles installed by Yahoo! Install Manager

Program module:YInstHelper.dll
Name:YInstHelper Module
Path:C:\Program Files\Yahoo!\Common\YInstHelper.dll
Additional files:
  • messmod.dll - Messenger Module for Yahoo! Companion
  • npyaxmpb.dll - Yahoo! activeX Plug-in Bridge
  • YInstBroker_ExePS.dll - YInstBro Dynamic Link Library (Broker PS Dynamic Link Library)
  • YmailCfg.dll - Yahoo! Mail Configuration (Yahoo! Mail Configuration Control)
  • YmailCfg_EXE.exe - Yahoo! Mail Configuration EXE
  • Ysctr.exe - Yahoo! Software Center (Software Center Control)
  • YWXcom.dll
  • Yshortcut.exe - YShortcut Application (Yahoo! Shortcuts Importer)
  • YDefUser.dll - Yahoo! Inc. YDefUser (YDefUser)
  • yverinfo.dll - Get Version Utility (Get Version Info)
  • yiesrvc.dll - Yahoo! IE Services
  • yinsthelper.dll - YInstHelper Module
  • yregucfg.dll - YRegUCfg Module
  • yupdctr.exe - YRegHost Module
  • ymmapi.dll - YMMAPI Module
  • YIeTagBm.dll - IE Shortcuts
  • YInstBroker.exe - YInst Broker
  • YMailAdvisor.exe - Yahoo! Mail (Yahoo! Mail Advisor)
  • YMMAPI.exe
  • YVerGlance.dll - YVerGlance
  • Yshortcut.dll - Shortcuts
  • yhexbmesus.dll - YhExBMes
  • YUnload.dll - YUnload
  • YDPCTL.dll - YDPCTL (YDP ActiveX Control)
  • ylogin.dll - ylogin
  • unatt_wrap.exe - att.net Toolbar Uninstall Setup
  • unbt_wrap.exe - BT Yahoo! Toolbar Uninstall Setup
  • unin_yextras.exe - Yahoo! Browser Services Setup
  • uninst_ymailadv.exe - Yahoo! Mail Advisor Setup
  • unycust.exe - Yahoo! extras Uninstall
  • unyext.exe - Yahoo! Browser Services Uninstall
  • unypsr.exe - Yahoo! Anti-Spy Uninstall
  • unyt.exe - Yahoo! Toolbar Setup
  • unyt_wrap.exe - Yahoo! Toolbar Uninstall Setup

Program behaviorsBehaviors exhibited

Context Menu Handler
  • YMMAPI.dll added to Windows Explorer under the name 'Yahoo! Mail' with a class of {5464D816-CF16-4784-B9F3-75C0DB52B499}.
Google Chrome Plugin
  • npyaxmpb.dll is loaded in the Google Chrome web browser as 'npyaxmpb.dll'.
2 Internet Explorer BHOs
  • YIeTagBm.dll is installed in Internet Explorer as a BHO (Browser Helper Object) under the name 'YahooTaggedBM Class' with the class of {65D886A2-7CA7-479B-BB95-14D1EFB7946A}.
  • yiesrvc.dll is installed in Internet Explorer as a BHO (Browser Helper Object) under the name 'Yahoo! IE Services Button' with the class of {5BAB4B5B-68BC-4B02-94D6-2FC0DE4A7897}.
Internet Explorer Bar
  • yhexbmesus.dll installs an Explorer Bar in Internet Explorer called '&Yahoo! Messenger' with a class of {4528BBE0-4E08-11D5-AD55-00010333D0AD}.
Internet Explorer Extension
  • yiesrvc.dll is installed as an Internet Explorer extension as 'Yahoo! IE Services Button' with a class of {5BAB4B5B-68BC-4B02-94D6-2FC0DE4A7897}.
Mozilla Plugin
  • npyaxmpb.dll is loaded into Mozilla Firefox under the product name '[email protected]/YahooActiveXPluginBridge;version=' with a plugin key of '[email protected]/YahooActiveXPluginBridge;version=' for all users of the PC.
  • ymmapi.dll runs as a service named 'MapsGalaxyService' (MapsGalaxy_39Service).
Startup File (All Users Run)
  • YMailAdvisor.exe is loaded in the all users (HKLM) registry as a startup file name 'YMailAdvisor' which loads as "C:\Program Files\Yahoo!\Common\YMailAdvisor.exe".
3 Windows Firewall Allowed Programs
  • unyt.exe is added as a firewall exception for 'C:\Program Files\Yahoo!\Common\unyt.exe'.
  • unatt_wrap.exe is added as a firewall exception for 'C:\Program Files\Yahoo!\Common\unatt_wrap.exe'.
  • ymmapi.dll is added as a firewall exception for 'C:\Program Files1\Yahoo!\MESSEN~1\yserver.exe'.

Program resource utilizationResource utilization averages

Memory:720 KB
21.09 MB average
Total CPU:0.0009094942%
0.031193% average
Kernel CPU:0.00060742%
0.016088% average
User CPU:0.00030207%
0.015104% average
CPU cycles/sec:17,712
8,062,084 average

How do I remove Yahoo! Install Manager?

You can uninstall Yahoo! Install Manager 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 Yahoo! Install Manager, 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 Yahoo! Install Manager.

How do I reset my web browser?

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

Win Vista (SP2) 40%
Win Server 2003 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 20%
Keep it 80%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows Vista 43.26%
Windows 7 36.07%
Windows XP 17.20%
Windows 10 3.43%
Windows Server 2003 0.04%
Which OS releases does it run on?
Windows Vista Home Premiu... 35.06%
Windows 7 Home Premium 19.59%
Microsoft Windows XP 16.81%
Windows 7 Ultimate 8.58%
Windows Vista Home Basic 6.05%
Windows 7 Professional 5.90%

Distribution by countryGeography

72.36% of installs come from the United States
Which countries install it?
  United States 72.36%
  United Kingdom 4.19%
  France 2.64%
  Canada 2.08%
  Italy 1.41%
  Germany 1.26%
  India 1.08%
  Romania 1.08%
  Australia 0.95%
  Taiwan 0.90%
  Egypt 0.65%
  Spain 0.63%
  Mexico 0.50%
  Argentina 0.50%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 30.90%
Hewlett-Packard 30.64%
Acer 14.04%
Toshiba 10.39%
Intel 2.61%
American Megatrends 2.19%
Gateway 1.72%
Sahara 1.62%
Lenovo 0.89%
ASUS 0.84%
Samsung 0.68%
Common models
Dell Inspiron 530 5.88%
Dell Inspiron 1525 4.08%
HP G60 Notebook PC 3.48%
HP Pavilion dv7 Notebook ... 2.76%
HP Pavilion dv6700 Notebo... 2.76%
Dell Dimension E521 2.28%

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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