What is NMSAccess.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 NMSAccess.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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NMSAccess.exe file information

Windows Task Manager with NMSAccess
NMSAccess.exe process in Windows Task Manager

The process known as CDBurnerXP belongs to software CD Burner XP Pro (version 3) or CDBurnerXP or Cornerstone or IDEXX-PACS by Numedia Soft ( or Free Software or Your Company Name.

Description: NMSAccess.exe is not essential for the Windows OS and causes relatively few problems. The file NMSAccess.exe is located in a subfolder of "C:\Program Files" or sometimes in the C:\Windows\System32 folder or in the "C:\Program Files" folder. Known file sizes on Windows 10/8/7/XP are 45,056 bytes (81% of all occurrences), 65,536 bytes or 71,360 bytes. 
The program has no file description. The program is not visible. NMSAccess.exe is not a Windows system file. Therefore the technical security rating is 51% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with NMSAccess.exe, you can also uninstall the software CDBurnerXP Pro 3 or CDBurnerXP using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify NMSAccess.exe related errors

Important: Some malware camouflages itself as NMSAccess.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the NMSAccess.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

A part of the freeware CD-burner XP
  Anders T.  
comes with CDBurnerXP Pro
Seems only necessary if you want to allow non administrators to use your CDBurnerXP program which you use as an administrator yourself
Also Cheetah DVD burner uses this app
like nero burning rights. comes with cdburner xp. needed for burning cds without admin privs
Also comes with StudioLine, a graphics program I d/l'd that I thought was free - was a trial. I uninstalled StudioLine but nmsaccess.exe still started when I started Windows xp. Ran services.msc, disabled nmsaccess.exe, went to c:\Program Files and deleted the StudioLine folder.
part of cdburner xp
also cheetah dvd burner uses this file
CDburner XP pro uses it to allow non admin users to access their burners, without it the cd drive does not show up in the list of available drives, very important, ONLY if the main user of the computer does not have admin privileges. Probably not required for home users in most situations.
  See Chao  
Installed on WinNT/2000/XP systems by several CD/DVD burning programs that use a component library from NuMedia Soft to allow non-administrators to burn CD/DVDs.
  Robert   (further information)
NMSAccess.exe and NMSAccessU.exe are safe. They are essential services for accessing optical devices (CD/DVD). The service is digitally signed and used by products using our DVD burning SDK.
  Numedia Soft, Inc - Support Staff   (further information)

Rating chart

Summary: Average user rating of NMSAccess.exe: based on 14 votes with 12 user comments. 11 users think NMSAccess.exe is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous. One user thinks NMSAccess.exe is dangerous and recommends removing it. 3 users don't grade NMSAccess.exe ("not sure about it").

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Best practices for resolving NMSAccess issues

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

NMSAccess.exe [all]