What is es.dll?

The genuine es.dll file is a software component of COM Services by Microsoft.
Es.dll is a DLL (dynamic link library) associated with the Supports System Event Notification Service (SENS) program. DLL files store data, code and resources needed by one or more programs in order to function correctly. If this service is stopped, any services dependent on it will fail to start. SENS provides automatic distribution of events to subscribing Component Object Model (COM) components. These components are used for communication between system processes and object creation. The Component Object Model is a standard for binary interfaces introduced in 1993 by Microsoft. Microsoft was founded in 1975 by Bill Gates and Paul Allen and quickly rose to prominence following the launch of their popular operating system, MS-DOS, for early personally computers. Microsoft began developing graphical user interface and the distinguishable Start-button on the introduction on Windows 95. Further additions like networking and security soon followed.

ES stands for COM+ Event System (EventSystem)

Es.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if es.dll is a Windows system file or if it belongs to an application that you can trust.

Click to Run a Free Scan for es.dll related errors

Es.dll file information

The process known as COM+ Event System (EventSystem) belongs to software COM Services or Microsoft Windows Operating System by Microsoft (

Description: Es.dll is not essential for the Windows OS and causes relatively few problems. The file es.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 253,952 bytes (42% of all occurrences), 243,200 bytes and 4 more variants. 
The service can be started or stopped from Services in the Control Panel or by other programs. There is no file information. The program is not visible. It is not a Windows core file. The file is a trustworthy file from Microsoft. The software is not active. Therefore the technical security rating is 6% dangerous.

Recommended: Identify es.dll related errors

Important: Some malware disguises itself as es.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the es.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

There are no user opinions yet. Why not be the first to write a short comment?

Do you have additional information? Help other users!
What do you know about es.dll:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving es issues

A clean and tidy computer is the key requirement for avoiding problems with es. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the es.dll process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

es.dll [all]