What is MsgAgt.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 MsgAgt.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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MsgAgt.exe file information

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

The process known as Promise RAID Message Agent or Promise Message Agent belongs to software Promise RAID Message Agent or Promise Array Message Agent or Array Management or SuperCheck or Promise Message Agent by Promise Technology (

Description: MsgAgt.exe is not essential for the Windows OS and causes relatively few problems. The MsgAgt.exe file is located in a subfolder of "C:\Program Files" (mainly C:\Program Files\Promise\Utility\). Known file sizes on Windows 10/8/7/XP are 634,880 bytes (33% of all occurrences), 679,936 bytes and 7 more variants. 
The program has no visible window. The file is not a Windows core file. The software uses ports to connect to or from a LAN or the Internet. MsgAgt.exe is able to connect to the Internet and record keyboard and mouse inputs. Therefore the technical security rating is 58% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you run into problems with MsgAgt.exe, you can safely remove the program using the uninstall program of Array Management or Promise Array Management (Control Panel ⇒ Uninstall a Program).

Recommended: Identify MsgAgt.exe related errors

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

Monitors your RAID controller - however it leaks handles and the service should be restarted once in a while (everything from 15 minutes to 12 hours, possibly using a scheduled task - net stop raidmagt & net start raidmagt )
  D. Kaln├Žs  
It announce itself on the network by broadcasting on TCP 712
Is't installed with Promise hardware RAID (ussually embedded in ASUS motherboards)
Part of the Promise Array Management (PAM) utility
  TazUk   (further information)
I no that MsgAgt.exe is opening a hell of a lot ports to the internet, my Outpost Firewall showed me that it had opend more than 900 ports and counting, and that on a fresh installed pc only windows, drivers, anti-virus and the firewall. I don't no if its a security risk, but i think it's to many ports
This is not essential, but very useful for monitoring RAID arrays on remote computers over a network. However, if you absolutely must be "in touch" with RAID failures on remote systems, those systems must be running the MsgAgt.exe (for promise equipped systems only). As stated, it gorges on handles and will eventually affect the non-paged memory pool. Drivers and TCP sessions are choked, and you crash. Seems to affect ASUS. Update your PAM software.
It is for the Promise Array Manager RAID ware. SUX under win98, daily page fault errors.
  Stefan Attaway  
One of two services running by the Promise Array management. User Task Manager and switch on 'handles'; one hour after a reboot and its up to 15000. In the end it takes the server down in a week or two. Either restart by scheduled task or, if you don't really use it, set the srevices to manual.
  andy e  

Rating chart

Summary: Average user rating of MsgAgt.exe: based on 9 votes with 8 user comments. 5 users think MsgAgt.exe is essential for Windows or an installed application. 3 users think it's neither essential nor dangerous. One user suspects danger. One user is not sure about it.

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Best practices for resolving MsgAgt issues

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

MsgAgt.exe [all]