What is MMERefresh.exe?

The genuine MMERefresh.exe file is a software component of Pro Tools by Avid.
Pro Tools is a digital audio workstation. MMERefresh.exe refreshes audio extensions, such as MIDI ports, that are used by Pro Tools. This is not an essential Windows process and can be disabled if known to create problems. Pro Tools, developed by Evan Brooks and Peter Gotcher, was first introduced in 1984 under the name, "Sound Designer." The program is primarily used for sound recording and sound production purposes. The latest version of Pro Tools supports non-linear, non-destructive audio editing, and 16-bit, 24-bit, 32-bit, and 64-bit float audio at sample rates up to 192 kHz. Pro Tools is available for the Windows and Mac OS X platforms. Avid Technology is an American company that designs and develops multimedia software, specializing in non-linear audio and video editing systems. Avid products are widely used in the television and film industries. Avid was founded in 1987 by Bill Warner. Avid acquired Digidesign, creator of Pro Tools and Venue in 1994. The company's annual revenues currently exceed US $677 million. Avid is headquartered in Burlington, Massachusetts, USA.

MmERefresh stands for Multimedia Extension Refresh

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 MMERefresh.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.

Click to Run a Free Scan for MMERefresh.exe related errors

MMERefresh.exe file information

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

The process known as Digidesign MME Binder or Avid Audio MME Binder

belongs to software Avid Pro Tools SE or Digidesign Pro Tools M-Powered Essential or Digidesign Audio Drivers or or Avid HD Driver or Avid Audio Drivers or Avid MP3 Option or Digidesign Pro Tools LE

by Avid Technology ( or Avid, Inc. All rights reserved or Digidesign, A Division of Avid Technology (

Description: MMERefresh.exe is not essential for the Windows OS and causes relatively few problems. The file MMERefresh.exe is located in a subfolder of "C:\Program Files (x86)" (typically C:\Program Files (x86)\Digidesign\Drivers\ or C:\Program Files (x86)\Digidesign\Pro Tools\). Known file sizes on Windows 10/8/7/XP are 77,824 bytes (71% of all occurrences), 81,920 bytes and 4 more variants. 
The process is the DigiRefresh service.
The MMERefresh.exe file is not a Windows system file. The program has no visible window. The software is loaded during the Windows boot process (see Registry key: MACHINE\Run). Therefore the technical security rating is 47% dangerous; but you should also compare this rating with the user reviews.

Uninstalling this variant: If you still experience problems with MMERefresh.exe, you may also do the following:
  • contact Customer Service
  • uninstall the software Avid Pro Tools SE or Digidesign Pro Tools M-Powered Essential using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)

Recommended: Identify MMERefresh.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as MMERefresh.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the MMERefresh.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 Digidesign \ Protools process, necessary for communication with Protools hardware.
It is part of AVID - video editing software.
Relates to your Digidesign Pro Tools, in my case an Mbox2. I believe it is monitoring the Mbox is connection? Unsure though.
    (further information)
gehört entweder Digidesign Protools oder aber auch zu neueren Avid Xpress Mediacomposer Versionen
MMERefresh.exe is a process assoiciated with Protools Hard Disk audio software and hardware. It is connected to the audio system in windows to allow it to be used in windows. It is harmless and needed to run Protools.
  tony   (further information)
Related to Digidesgin Protocols Refreshes your midi ports on the 002(R) (the 002R is a hardware audi
I got it when I got Avid Pro Tools

Summary: Average user rating of MMERefresh.exe: based on 5 votes with 7 user comments. 5 users think MMERefresh.exe is essential for Windows or an installed application. 3 users don't grade MMERefresh.exe ("not sure about it").

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Best practices for resolving MMERefresh issues

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

MMERefresh.exe [all]