What is NMService.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the NMService.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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NMService.exe file information

The process known as NexonMessenger Service or Kaseya Network Monitor belongs to software Combat Arms or Kaseya Network Monitor by Nexon ( or Kaseya International (

Description: NMService.exe is not essential for the Windows OS and causes relatively few problems. NMService.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,470,464 bytes (30% of all occurrences), 13,179,660 bytes and 5 more variants. 
The program is not visible. The NMService.exe file is not a Windows system file. NMService.exe is able to connect to the Internet, record keyboard and mouse inputs and manipulate other programs. Therefore the technical security rating is 44% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you want to remove the program completely, go to Control Panel ⇒ Software ⇒ Combat Arms or Combat Arms EU.

Recommended: Identify NMService.exe related errors

Important: Some malware camouflages itself as NMService.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the NMService.exe 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 is a messenger service for the online fps game Combat Arms.
  Harold Ewald   (further information)
This is a process used in a program called Network magic. It is used to connect to the internet, but not necessary if you use a different program to connect to the internet.
  john w.  

Summary: Average user rating of NMService.exe: based on 2 votes with 2 user comments. 2 users think NMService.exe is essential for Windows or an installed application.

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Best practices for resolving NMService issues

A clean and tidy computer is the key requirement for avoiding problems with NMService. 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 NMService.exe 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

NMService.exe [all]