84,488,480 programs installed

Should I remove Microsoft Lync 2010 Attendee?

What percent of users and experts removed it?
5% remove it95% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #8,979
United States Rank #7,516
Reach 0.0425%
Lifespan of installation (until removal)
< 17.72 days
522.81 days >
Average installed length: 274.70 days


4.0.7577.4486 0.24%
4.0.7577.4478 0.12%
4.0.7577.4461 0.12%
4.0.7577.4446 20.19%
4.0.7577.4415 13.26%
4.0.7577.4392 0.96%
4.0.7577.4391 17.32%
4.0.7577.4388 4.42%
4.0.7577.4382 4.90%
4.0.7577.4356 0.48%
4.0.7577.4109 20.79%
4.0.7577.4098 5.62%
4.0.7577.254 9.80%
4.0.7577.0 1.79%

Other programs by Microsoft

Microsoft Lync 2010 Attendee


Microsoft Lync 2010 Attendee is a program developed by Microsoft. The most used version is 4.0.7577.4109, with over 98% of all installations currently using this version. Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. 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 main program executable is AttendeeCommunicator.exe. The software installer includes 42 files and is usually about 78.32 MB (82,120,359 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 55% of users of Microsoft Lync 2010 Attendee come from the United States, it is also popular in United Kingdom and Germany.

Program detailsProgram details

URL: www.microsoft.com
Installation folder: C:\users\user\appdata\Local\Microsoft Lync Attendee\
Uninstaller: MsiExec.exe /X{6F72D695-5188-4484-B21E-E16CD89C4008}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 78.32 MB
Language: English (United States)

Program filesFiles installed by Microsoft Lync 2010 Attendee

Program executable:AttendeeCommunicator.exe
Name:Microsoft Lync 2010 Attendee
Path:C:\users\user\appdata\Local\Microsoft Lync Attendee\AttendeeCommunicator.exe
Additional files:
  • UCCAPIRES.dll - Interfejs klienta programu Microsoft Unified Communications (Biblioteka DLL zasobów interfejsu klienta programu Microsoft Unified Communications)
  • UccApi.dll - Microsoft Unified Communications Client API (Microsoft Unified Communications Client API DLL)
  • SLMSPRBootstrap.dll
  • msvcp90.dll - Microsoft® Visual Studio® 2008 (Microsoft® C++ Runtime Library)
  • msvcr90.dll - Microsoft® C Runtime Library
  • AttendeeCommunicator.exe - Microsoft Lync 2010 Attendee
  • Appshapi.dll - Microsoft Lync Server 2010 (Application Sharing API module)
  • appshcom.dll - App sharing COM Objects
  • appshvw.dll - App sharing ActiveX Client
  • intldate.dll - Microsoft Lync Server 2010intldate.dll
  • msptls.dll - Microsoft PowerPoint Viewer for Lync
  • ocpptview.dll
  • ogl.dll - Office Graphics Library
  • ppvwintl.dll
  • RTMPLTFM.dll - Microsoft Real Time Media Stack
  • saext.dll - Microsoft Lync Server 2010saext.dll
  • agcore.dll - Microsoft (R) Silverlight (Microsoft agcore dll)
  • npctrlui.dll - 4.0.60831.0
  • System.Windows.dll
  • coreclr.dll - Microsoft® Silverlight (Microsoft .NET Runtime Common Language Runtime - WorkStation)
  • mscorlib.dll - Microsoft Common Language Runtime Class Library
  • mscorrc.dll - Microsoft .NET Runtime resources
  • System.Core.dll - .NET Framework
  • System.dll
  • System.Net.dll - Silverlight Network Class Library - System.Net.dll
  • System.Runtime.Serialization.dll
  • System.ServiceModel.dll
  • System.ServiceModel.Web.dll
  • System.Windows.Browser.dll - Silverlight System.Windows.Browser
  • System.Xml.dll
  • AppSharingChromeHook.dll - Microsoft Lync 2010 (Microsoft Lync 2010 AppSharing Chrome Hook)
  • CURes.dll - Microsoft Lync 2010 Cumulative Update Resource File
  • LCLang.dll - Microsoft Lync 2010 Language Specific Resources--English
  • MeetingJoinAxAOC.dll - Microsoft Lync 2010 Attendee Meeting Join Control
  • npctrl.dll - Silverlight Plug-In
  • OCAPIRES.dll - Microsoft Lync 2010 App Layer Specific Resources--English
  • ocimport.dll - Microsoft Lync 2010Microsoft Lync Import Library
  • ocrec.dll - Microsoft Lync 2010 Recording library
  • psom.dll - Microsoft Lync 2010 PSOM Protocols layer
  • Uc.dll - Microsoft Lync 2010 Application Layer COM Server
  • sqmapi.dll - SQM Client

Program behaviorsBehaviors exhibited

Google Chrome Plugin
  • npctrl.dll is loaded in the Google Chrome web browser as 'npctrl.dll'.
Mozilla Plugin
  • npctrl.dll is loaded into Mozilla Firefox under the product name 'Ag Player' with a plugin key of '@Microsoft.com/NpCtrl,version=1.0' for all users of the PC.
Startup File (All Users Run)
  • AttendeeCommunicator.exe is loaded in the all users (HKLM) registry as a startup file name 'AttendeeCommunicator' which loads as "C:\Program Files\Microsoft Lync Attendee\AttendeeCommunicator.exe" /fromrunkey.
Windows Firewall Allowed Program
  • AttendeeCommunicator.exe is added as a firewall exception for 'C:\Documents and Settings\user\Application Data\Microsoft Lync Attendee\AttendeeCommunicator.exe'.

How do I remove Microsoft Lync 2010 Attendee?

You can uninstall Microsoft Lync 2010 Attendee 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 Microsoft Lync 2010 Attendee, 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 Microsoft Lync 2010 Attendee.

How do I reset my web browser?

If your web browser homepage and search settings have been modfied by Microsoft Lync 2010 Attendee you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome

Win 7 (SP1) 64%
Win 7 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 5%
Keep it 95%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 66.19%
Windows 10 26.64%
Windows XP 4.30%
Windows Vista 2.87%
Which OS releases does it run on?
Windows 7 Professional 27.34%
Windows 7 Home Premium 19.66%
Windows 7 Ultimate 9.35%
Windows 7 Enterprise 9.11%
Windows 8.1 Pro 5.28%
Windows 8.1 5.04%

Distribution by countryGeography

54.88% of installs come from the United States
Which countries install it?
  United States 54.88%
  United Kingdom 4.40%
  Germany 4.21%
  Canada 2.96%
  Finland 2.96%
  France 2.58%
  India 2.20%
  Sweden 2.01%
  Brazil 1.91%
  Italy 1.82%
  Norway 1.43%
  Netherlands 1.24%
  Mexico 1.05%
  Poland 1.05%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 38.19%
Hewlett-Packard 26.65%
Acer 7.37%
Lenovo 6.99%
ASUS 6.81%
Samsung 4.35%
Toshiba 3.97%
Intel 1.51%
Medion 0.57%
Common models
HP Pavilion dv6 Notebook ... 4.15%
HP Pavilion g6 Notebook P... 3.02%
Dell Latitude E6520 2.64%
Dell Latitude E6410 2.64%
Dell Latitude E6420 2.26%
HP Pavilion dv7 Notebook ... 1.89%

About Microsoft

Microsoft Corporation develops, manufactures, licenses and supports a variety of products and services related to computing.
Publisher URL: www.microsoft.com


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