What is MMDiag.exe? Is MMDiag.exe spyware or a virus?

How to fix MMDiag.exe related problems?
1. Run Security Task Manager to check your MMDiag process
2. Run Windows Repair Tool to repair MMDiag.exe related Windows Errors
3. Run MalwareBytes to remove persistent malware

Process name: Logging and Tracing Manager

Product: Musicmatch Jukebox

Support: Help link   Update link   Uninstall tool  

Company: Musicmatch (music.yahoo.com)

File: MMDiag.exe

An error reporting process, MMDiag.exe runs in the background as long as Musicmatch Jukebox is running. It tracks any errors encountered by the primary process, mmjb.exe, and periodically sends them to a remote tracking server. Yahoo! purchased Musicmatch in 2004 and subsequently rebranded the software as Yahoo! Music Jukebox. Yahoo! Music Jukebox went out of business four years later, and the software is no longer available for download. Some websites do offer old versions of Musicmatch Jukebox for download, but many of them are not compatible with Windows 7. If you want a detailed security rating about your MMDiag.exe (and all other running background processes) read the following user opinions, and download the free trial version of Security Task Manager. www.neuber.com/taskmanager/process/mmdiag.exe.html 

Note: Any malware can be named anything - so you should check where the files of the running processes are located on your disk. If a "non-Microsoft" .exe file is located in the C:\Windows or C:\Windows\System32 folder, then there is a high risk for a virus, spyware, trojan or worm infection! Check it out!

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

Users Opinions

Average user rating of MMDiag.exe: based on 27 votes. Read also the 23 reviews.

  • 218 users ask for this file. 13 users rated it as not dangerous. 3 users rated it as not so dangerous. 5 users rated it as neutral. 5 users rated it as little bit dangerous. One user rated it as dangerous. 5 users didn't rate it ("don't know").

All comments about MMDiag.exe:
Opened on it's own after bootup. oecpat
mmdiag.exe is a process that belongs to the MusicMatch Jukebox. MusicMatch Jukebox is a multimedia application supporting most know media formats. Stew Pidasso
Music Match Jukebox Component Joseph Dinwiddie
of musicmatch santo
it won't let you startup MusicMatch bigspender
MMDiag is a musicmatch file. It causes a logging and tracing error message to appear, which is a nuisance; it is not dangerous, however. I deleted it from the musicmatch folder (found in program files) and this has fixed the problem with no repercussions. Malcolm
Task Manager says it has caused 1.23 million page faults in the last 45 minutes. Memory usage is 224K and it gets a fair amount of CPU. Don't know what to do about it. Jim Cook
Removing MusicMagic Jukebox really helped the performance of my system. MMdiag.exe was a major part of slowing my machine because it does many page faults per second. Jim Cook
This file is associated with musicmaych jukebox, a music program application  See also: Link Tom
Creates logging mode entry. Log File RJames
Music Match Jukebox process Rick
MusicMatch tracks the music you play, so it can advise on similar music you might like. On some XP systems (with Version 10) it doesn't start up properly and gives an annoying box all the time. Rename MMDiag.exe to get rid of it. Sijpie
It constantly causes Musicmatch to crash. But it is a needed file. Just junk software
I deleted the file. That ended the logging and tracing error. Tim
Was in Windows prefetch, I don't think it was original Music Match file because it was created yesterday when I visited unknown web site, was using 100% CPU, original file and update was in Music Match and was over a year old so I think it was adware loaded yesterday. JW
As you said MusicMatch tracking, I just deleted it. Now everything works...Thanks MoRt
If you use Musicmatch Jukebox, keep this file. I've had it forever, and my system works fine. It does not eat up my memory, cause me error messages, page faults, or the disabling of the Jukebox. If you know you're not going to be using MMJ, open Task Manager, and end it's process (until system restart). Might as well end mim.exe, too since they go hand-in-hand. Or, you could uninstall the Jukebox in Add or Remove Programs.  See also: Link Haggis McMutton
musicmatch says it's a diagnostic file. I renamed 3 instances - caused no problems magicv8
its part of Musicmatch 10 doogle
Renamed mmdiag.exe that seems to have fixed the problem. MM opens fast and no error message tango
It worked fine for 2 years, now it page faults constantly - 2.5 million page faults so far today. It works on some systems, bad on other. I deleted it and musicmatch works fine. Mark
can be troublesome, mine completed 17,000,000 page faults in 12 hours. I delete the file and musicmatch is fine. Mark
It's a musicmatch process. Commenting it out is OK Jim

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