msnmsgr.exe

MSN Messenger Client

Application ProcessSafeMessaging Client
CPU Usage
1-8%
Memory
40-150 MB
Location
C:\Program Files\MSN Messenger or C:\Program Files (x86)\MSN Messenger
Publisher
Microsoft Corporation

Quick Answer

msnmsgr.exe is safe. It's the legitimate MSN Messenger client process that manages chat, presence, and notifications using a dedicated process to keep messaging responsive.

Is it a Virus?
✔ NO - Safe
Must be in C:\Program Files\MSN Messenger\msnmsgr.exe or C:\Program Files (x86)\MSN Messenger\msnmsgr.exe
Warning
Many processes normal
Each chat window or notification can spawn threads; MSNs may show multiple processes
Can I Disable?
✔ YES
Close MSN Messenger or disable startup/background tasks to reduce usage

What is msnmsgr.exe?

msnmsgr.exe is the executable for the MSN Messenger client, the classic Windows instant messaging app from Microsoft. It handles sign-in, contact lists, chat sessions, presence updates, and notification banners. The process runs to support messaging features while the app is active, and in some configurations may run in the background for status updates.

MSN Messenger uses a dedicated process to manage UI, network, and messaging tasks. It handles chat sessions, presence updates, and server communication, with multi-threading to keep the UI responsive while processing messages.

Quick Fact: MSN Messenger dates back to the era of desktop IM clients and uses a focused process model to separate UI from network and chat handling.

Types of MSN Messenger Processes

Is msnmsgr.exe Safe?

Yes, msnmsgr.exe is safe when it's the legitimate file from Microsoft installed via official channels or pre-installed by the device manufacturer.

Is msnmsgr.exe a Virus or Malware?

The real msnmsgr.exe is NOT a virus. Malware can masquerade as MSN Messenger, so verify location and signature.

How to Tell if msnmsgr.exe is Legitimate or Malware

  1. File Location: Must be in C:\Program Files\MSN Messenger\msnmsgr.exe or C:\Program Files (x86)\MSN Messenger\msnmsgr.exe. Any msnmsgr.exe elsewhere is suspicious.
  2. Digital Signature: Right-click the file in Explorer → Properties → Digital Signatures. Should show signer "Microsoft Corporation".
  3. Resource Usage: Normal usage is 1-8% CPU and 40-150 MB memory. Extremely high usage when idle is suspicious.
  4. Behavior: MSN Messenger should run when you launch the app. If it starts on startup or without user action, investigate for malware.

Red Flags: If msnmsgr.exe is located in unusual folders (Temp, AppData, or System32), runs when Messenger isn't open, lacks a valid digital signature, or uses excessive resources constantly, scan with antivirus software immediately. Beware of similarly-named files like "msnmsgr2.exe" or "msnmsgr_old.exe".

Why Is msnmsgr.exe Running on My PC?

msnmsgr.exe runs when you sign in to MSN Messenger or have it configured to run at Windows startup for quick access, presence updates, and message delivery. It can also stay active in the background to monitor contact status and notifications.

Reasons it's running:

Can I Disable or Remove msnmsgr.exe?

Yes, you can disable msnmsgr.exe. It's safe to close MSN Messenger when not in use, and you can uninstall it or disable startup/background tasks if you no longer need it.

How to Stop msnmsgr.exe

How to Uninstall MSN Messenger

Common Problems: High CPU or Memory Usage

If msnmsgr.exe is consuming excessive resources:

Common Causes & Solutions

Quick Fixes:
1. Open Task Manager (Ctrl+Shift+Esc) and identify high-usage chats or background tasks
2. Close unnecessary chats and disable nonessential notifications
3. Update MSN Messenger to the latest version
4. Disable startup and background options for MSN Messenger if not needed
5. Run a full antivirus scan to rule out malware masquerading as msnmsgr.exe

Frequently Asked Questions

Is msnmsgr.exe a virus?

No, the legitimate msnmsgr.exe from Microsoft is not a virus. Verify the file location as C:\Program Files\MSN Messenger\msnmsgr.exe or C:\Program Files (x86)\MSN Messenger\msnmsgr.exe and ensure a valid digital signature from Microsoft.

Why is msnmsgr.exe using so much CPU?

High CPU usage can come from active video calls, many open chats, or a problematic add-on. Check Task Manager, close heavy chats, update Messenger, and scan for malware if usage persists.

Can I delete msnmsgr.exe?

You can uninstall MSN Messenger via Windows Settings → Apps, or Control Panel. Data may be preserved if you use cloud messaging, but local data will be removed on uninstall.

Can I disable msnmsgr.exe at startup?

Yes. Use Task Manager → Startup tab to disable MSN Messenger from launching at login. This won’t uninstall the app, but will stop automatic startup.

Why are there multiple msnmsgr.exe processes?

MSN Messenger may spawn separate processes for UI, chats, and background tasks to improve responsiveness. Use Task Manager to inspect what each process is doing.

How do I reduce MSN Messenger’s memory usage?

Close unused chats, disable nonessential features, clear cache, keep Messenger updated, and consider turning off background sync or notifications to conserve memory.

Related Processes