84,488,480 programs installed

Should I remove ESN Sonar?

What percent of users and experts removed it?
22% remove it78% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #677
United States Rank #929
Reach 1.0047%
Lifespan of installation (until removal)
< 10.18 days
300.44 days >
Average installed length: 157.86 days


0.70.4 96.86%
0.70.3 0.24%
0.70.0 2.90%

Typically installed together

ESN Sonar

What is ESN Sonar?

Sonar is a cloud hosted service for integrating voice communication on websites.

About  (from ESN Social Software AB)

By bridging the desktop and the web, Sonar lets users stay connected while browsing web pages or even when shutting down the browser. We host the service for you in Amazon EC2 cloud services. The cloud enables reliable, rapid scaling. Have been in use for many years, the low system footprint, low latency and voice qual...  Read more


ESN Sonar is a program developed by ESN Social Software AB. The most used version is 0.70.4, with over 98% of all installations currently using this 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 main program executable is sonarhost.exe. The software installer includes 7 files and is usually about 2.34 MB (2,455,229 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 42% of users of ESN Sonar come from the United States, it is also popular in Germany and France.

Program detailsProgram details

Help link: www.sonar-api.com
Installation folder: C:\Program Files\Battlelog Web Plugins\Sonar
Uninstaller: C:\Program Files\Battlelog Web Plugins\Sonar\esnsonar_uninstall.exe
Estimated size: 2.34 MB

Program filesFiles installed by ESN Sonar

Program executable:sonarhost.exe
Name:ESN Sonar API
ESN Sonar Host Application
Path:C:\Program Files\battlelog web plugins\sonar\0.70.4\sonarhost.exe
Additional files:
  • npesnsonar.dll - ESN Sonar API (0.70.4)
  • SonarAx.ocx - ESN Sonar ActiveX Plugin
  • esnsonar_uninstall.exe

Program behaviorsBehaviors exhibited

Google Chrome Plugin
  • npesnsonar.dll is loaded in the Google Chrome web browser as 'npesnsonar.dll'.
Mozilla Plugin
  • npesnsonar.dll is loaded into Mozilla Firefox under the product name 'ESN Sonar API' with a plugin key of '@esn.me/esnsonar,version=0.70.3' for all users of the PC.
Windows Firewall Allowed Program
  • SonarHost.exe is added as a firewall exception for 'C:\Program Files\Battlelog Web Plugins\Sonar\0.70.3\SonarHost.exe'.

How do I remove ESN Sonar?

You can uninstall ESN Sonar 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 ESN Sonar, 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 ESN Sonar.

How do I reset my web browser?

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

Plugs into Mozilla Firefox
Uninstall it 22%
Keep it 78%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 60.91%
Windows 10 38.04%
Windows Vista 1.01%
Windows XP 0.04%
Which OS releases does it run on?
Windows 7 Home Premium 28.44%
Windows 7 Ultimate 20.87%
Windows 7 Professional 10.01%
Windows 8.1 Pro 7.44%
Windows 8.1 7.31%
Windows 10 Home 6.59%

Distribution by countryGeography

41.59% of installs come from the United States
Which countries install it?
  United States 41.59%
  Germany 7.31%
  France 6.32%
  United Kingdom 5.92%
  Canada 3.63%
  Australia 2.74%
  Sweden 2.59%
  Netherlands 2.35%
  Brazil 2.26%
  Italy 2.14%
  Poland 1.66%
  DK 1.59%
  Finland 1.56%
  Norway 1.47%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
ASUS 20.90%
Acer 15.21%
Hewlett-Packard 14.82%
Dell 12.67%
Alienware 4.49%
Lenovo 3.93%
MSI 3.65%
Samsung 2.44%
Toshiba 2.32%
Intel 1.94%
Medion 0.45%
Common models
ASUS All Series 16.67%
MSI MS-7821 4.01%
MSI MS-7758 3.26%
HP Pavilion dv6 Notebook ... 2.87%
MSI MS-7751 2.29%
MSI MS-7681 2.27%

comments3 comments

user comment
user comment
Swayover a year ago
I kept it for Battlefield 3 - after some research co. and program don't seem malicious. Did disable the plugins in my browsers however.
user comment
Desover a year ago
Installed with Battlefield 3 web plugin.
user comment
Mikeover a year ago
Installed with battlefield 4 web plugin.