What is SMSvcHost.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 SMSvcHost.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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SMSvcHost.exe file information

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

The process known as SMSvcHost.exe belongs to software Microsoft .NET Framework (version 4 Client Profile, 4, 4 Client, 4.5.3 Preview) or Net.Tcp Port Sharing Service or Net.Pipe Listener Adapter, Net.Tcp Listener Adapter, Net.Tcp Port Sharing Service or Windows Communication Foundation or Net.Msmq Listener Adapter by Microsoft (

Description: SMSvcHost.exe is not essential for Windows and will often cause problems. SMSvcHost.exe is located in a subfolder of C:\Windows. Known file sizes on Windows 10/8/7/XP are 132,096 bytes (30% of all occurrences), 122,880 bytes and 17 more variants. 
The program is not visible. The file is not a Windows core file. The file is digitally signed. Therefore the technical security rating is 26% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with SMSvcHost.exe, you can remove the entire program Microsoft .NET Framework 4 Client Profile or Windows Communication using Windows Control Panel.

Recommended: Identify SMSvcHost.exe related errors

If SMSvcHost.exe is located in a subfolder of the user's profile folder, the security rating is 79% dangerous. The file size is 244,224 bytes. There is no information about the author of the file. The program has no visible window. The file is not a Windows core file.

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

This is a user-mode Windows service that accepts net.tcp:// connections on behalf of the worker process.
  PC-Mojo   (further information)
smsvchost.exe is a SMSvcHost.exe from Microsoft Corporation belonging to Microsoft® .NET Framework
Is not a virus, nor does it cause viruses, but it can significantly slow down a computer with its high CPU usage percent. Just like any windows application, it can be duplicated or even altered in a an attack on your computer. It might even be highly targeted, given its runtime percentages. If computer is slow, go to task manager processes and end it. This should speed up gaming ability. If not, check for other high CPU usage, and stop it if you can (if not important to task you are doing) and scan for viruses.
  Jodi Campbell  
.Smsvchost.exe with description SMSvcHost.exe is a process file from company Microsoft Corporation belonging to product Microsoft® .NET Framework.
  Abidin-G.Antep   (further information)
It freezes my computer and i have to end the process.
This issue is not so much whether the file itself is safe. Overnight my ISP decided to "enhance" my PC with a number of new autoloads to push pop-up messages to me and monitor my activity. This was one of the services that was set to start automatically at boot time, along with three or four others (so far--I keep discovering new ones). So the way my ISP is using it is very spammy, but the file itself is not.
lately it seems to freeze my pc during gaming, I close the process and it unfreezes. Lots of processor usage as well when its open.

Rating chart

Summary: Average user rating of SMSvcHost.exe: based on 12 votes with 7 user comments. 3 users think SMSvcHost.exe is essential for Windows or an installed application. 3 users think it's probably harmless. 4 users think it's neither essential nor dangerous. One user suspects danger. One user thinks SMSvcHost.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving SMSvcHost issues

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

SMSvcHost.exe [all]