What is tsmsvc.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 tsmsvc.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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Tsmsvc.exe file information

Windows Task Manager with tsmsvc
Tsmsvc.exe process in Windows Task Manager

The process known as T-DSL SpeedManager Service belongs to software T-DSL SpeedManager by T-Systems Nova, Berkom ( or T-Systems Business Services (

Description: Tsmsvc.exe is not essential for the Windows OS and causes relatively few problems. The file tsmsvc.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 147,456 bytes (80% of all occurrences), 143,360 bytes or 270,336 bytes. 
The service can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The tsmsvc.exe file is not a Windows core file. The service has no detailed description. Therefore the technical security rating is 42% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you want to remove the program completely, go to Control Panel ⇒ Software ⇒ T-DSL SpeedManager.

Recommended: Identify tsmsvc.exe related errors

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

Wie angegeben der T-DSL Speed Manager - ein Volumenzähler der Telekom. Frisst mit der Zeit ganz schön RAM. Wer ihn braucht......
  Mic   (further information)
Hilfreicher Manager in Bezug bei Anzeige, wie schnell die speed im Internet ist- kann ich nicht bestätigen, dass d.manager ein RAM-Fresser ist-nur aufpassen bei der Netzwerkverbindung,ab und zu die OK Taste drücken, sonst gibts keine Internetverbindung
Absolut harmlos das Ding, Ist von der Telekom nichts boesartiges.
Speed- und Volumenzähler bei Internetverbindungen. Funktioniert hinter Routern in einigen Bereichen nur eingeschränkt oder gar nicht!

Rating chart

Summary: Average user rating of tsmsvc.exe: based on 6 votes with 4 user comments. 5 users think tsmsvc.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user is not sure about it.

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Best practices for resolving tsmsvc issues

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

tsmsvc.exe [all]