What is mapsvc.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 mapsvc.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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Mapsvc.exe file information

Windows Task Manager with mapsvc
Mapsvc.exe process in Windows Task Manager

The process known as Microsoft Services for NFS Mapping Server Service or Mapping Server Service belongs to software Microsoft Windows Operating System or Microsoft Services for Network File System by Microsoft (

Description: Mapsvc.exe is not essential for the Windows OS and causes relatively few problems. The file mapsvc.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 118,272 bytes (50% of all occurrences), 121,344 bytes, 122,368 bytes or 121,856 bytes. 
The program has no visible window. Mapsvc.exe is not a Windows core file. The process listens for or sends data on open ports to a LAN or the Internet. The mapsvc.exe file is an unknown file in the Windows folder. Therefore the technical security rating is 65% dangerous.

Uninstalling this variant: If you experience any issues with installation of mapsvc.exe, you can uninstall the program using the Control Panel ⇒ Uninstall a ProgramC-Media 3D Audio or HASP HL Device Driver.

Recommended: Identify mapsvc.exe related errors

If mapsvc.exe is located in a subfolder of "C:\Program Files", the security rating is 42% dangerous. The file size is 102,400 bytes. The program has no visible window. You can uninstall this program in the Control Panel. It is not a Windows core file. The process uses ports to connect to or from a LAN or the Internet.

Important: Some malware camouflages itself as mapsvc.exe. Therefore, you should check the mapsvc.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.


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Best practices for resolving mapsvc issues

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

mapsvc.exe [all]