Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

4.5.0216.0 5.91%
4.4.0304.0 3.26%
4.4.0304.0 0.60%
4.3.0219.0 5.19%
4.3.0219.0 3.50%
4.3.0216.0 2.05%
4.3.0216.0 1.33%
4.3.0215.0 2.90%
4.3.0215.0 1.09%
4.2.0223.0 17.61%
4.2.0223.0 14.35%
4.2.0216.0 0.12%
4.2.0216.0 0.36%
4.1.0522.0 16.89%
4.1.0522.0 15.92%
4.0.1526.0 0.12%
4.0.1526.0 1.45%
2.1.1116.0 1.57%
2.1.1116.0 2.29%
2.0.0657.0 0.72%
2.0.0657.0 2.05%
1.0.1611.0 0.60%
1.0.1495.0 0.12%

Relationships

shellext.dll

Microsoft Security Essentials Shell Extension by Microsoft Corporation (Signed)

Remove shellext.dll
Version:   4.4.0304.0
MD5:   9296c8455cd4c232fdca2f205fe31bce
SHA1:   6ceda464747db1097927380b1812451f5aeb7ec8

Overview

shellext.dll is loaded as dynamic link library that runs in the context of a process. It is installed with a couple of know programs including Microsoft Security Essentials published by Microsoft Corporation, Microsoft Security Essentials from Microsoft Corporation and Microsoft Security Essentials by Microsoft Corporation. The file is digitally signed by Microsoft Corporation.

DetailsDetails

File name:shellext.dll
Publisher:Microsoft Corporation
Product name:Microsoft Security Essentials Shell Extension
Typical file path:C:\Program Files\microsoft security essentials\shellext.dll
Original name:ShellExt.exe.mui
File version:4.4.0304.0
Size:259.66 KB (265,888 bytes)
Build date:10/23/2013 5:54 PM
Certificate
Issued to:Microsoft Corporation
Authority (CA):Microsoft Corporation
Effective date:Monday, July 13, 2009
Expiration date:Wednesday, October 13, 2010
Digital DNA
Entropy:5.534282
File packed:No
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Microsoft Corporation
8% remove
Microsoft Security Essentials is an antivirus software product that provides protection against different types of malware such as computer viruses, spyware, rootkits and Trojan horses. It runs on Windows XP, Windows Vista and Windows 7, but not on Windows 8, which has a built-in AV component. Built upon the same virus definitions and scanning engine as other Microsoft antivirus products, MSE provides real-time protection, constantly mo...
Microsoft Corporation
4% remove
Endpoint Protection uses the monitoring and deployment capabilities of Configuration Manager to streamline the deployment of antimalware definitions and uses Configuration Manager to provide an in-console monitoring solution. You can also use Endpoint Protection to configure Windows Firewall settings on computers in your enterprise. Endpoint Protection integrates with System Center 2012 Configuration Manager to provide a unified solutio...
Microsoft Corporation
1% remove
The Microsoft Security Essentials Prerelease program allows users to run the latest & greatest versions of Security Essentials before they are publicy available.
Microsoft Corporation
1% remove
Microsoft Forefront is a family of line-of-business security software that are designed to help protect computer networks, network servers (such as Microsoft Exchange Server and Microsoft SharePoint Server) and individual devices.

BehaviorsBehaviors

Context menu handlers
Located in '*\shellex\ContextMenuHandlers'
  • Name: 'EPP'
  • Name: 'MSSE'
Approved shell extensions
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
  • 'EPP' with CLSID {09A47860-11B0-4DA5-AFA5-26D86198A780}

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 57.00%
Windows 7 Ultimate 17.00%
Windows 7 Professional 10.50%
Microsoft Windows XP 9.50%
Windows Vista Home Premium 5.00%
Windows Vista Ultimate 1.00%

Distribution by countryDistribution by country

United States installs about 52.50% of Microsoft Security Essentials Shell Extension.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 29.12%
Hewlett-Packard 14.94%
ASUS 13.03%
Acer 10.34%
Toshiba 6.13%
Sony 6.13%
Intel 4.60%
Lenovo 3.83%
Compaq 3.07%
GIGABYTE 1.92%
Gateway 1.53%
MSI 1.53%
NEC 1.53%
Samsung 0.77%
Sahara 0.77%
American Megatrends 0.77%
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