What is COMRes.dll?

The genuine COMRes.dll file is a software component of COM Services by Microsoft.
The background process in Windows that allows the COM process to function, this DLL enables communication between the operating system aspects of the COM service. The precursor to the COM+ service, COMres implements a variety of functions via network connection in versions of Windows 2000 and later. Founded in 1975, Microsoft's flagship product is the Windows operating system, which is installed on over 90% of workstations worldwide.

COMRes.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. You can fix your COMRes.dll problem by downloading the correct COMRes.dll file. The following information can help you determine if COMRes.dll is a Windows system file or if it belongs to an application that you can trust.

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

COMRes.dll file information

The process known as COMRES.DLL appears to belong to software COM Services by Microsoft (

Description: COMRes.dll is not essential for Windows and will often cause problems. The COMRes.dll file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 855,040 bytes (66% of all occurrences), 1,462,784 bytes and 41 more variants. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. There is no file information. The program has no visible window. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. The COMRes.dll file is not a Windows core file. COMRes.dll appears to be a compressed file. Therefore the technical security rating is 71% dangerous, however you should also read the user reviews.

Recommended: Identify COMRes.dll related errors

If COMRes.dll is located in a subfolder of C:\Windows, the security rating is 74% dangerous. The file size is 12,288 bytes (66% of all occurrences) or 792,064 bytes. The software has no file description. It can change the behavior of other programs or manipulate other programs. The program is not visible. There is no detailed description of this service. COMRes.dll is not a Windows system file. COMRes.dll is able to record keyboard and mouse inputs, monitor applications and manipulate other programs.

Important: Some malware also uses the file name COMRes.dll, for example Trojan-GameThief.Win32.OnLineGames.umxa (detected by Kaspersky), and Trojan:Win32/Comotor.A!dll (detected by Microsoft). Therefore, you should check the COMRes.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

it copies and infects my pendrive... every folder in my pendrive got comres in it.....i think virus associates / hides in it

Rating chart

Summary: Average user rating of COMRes.dll: based on 8 votes with 2 user comments. One user thinks COMRes.dll is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. 2 users suspect danger. 3 users think COMRes.dll is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving COMRes issues

A clean and tidy computer is the key requirement for avoiding problems with COMRes. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the COMRes.dll process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

COMRes.dll [all]