What is wlcomm.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 wlcomm.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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Wlcomm.exe file information

Windows Task Manager with wlcomm
Wlcomm.exe process in Windows Task Manager

The process known as Windows Live Communications Platform or Windows Live Messenger Contacts Server belongs to software Windows Live Communications or Windows Live Communications Platform or Windows Live Essentials or Windows Live Messenger or Messenger by Microsoft (

Description: Wlcomm.exe is not essential for the Windows OS and causes relatively few problems. Wlcomm.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 27,512 bytes (46% of all occurrences), 26,480 bytes and 10 more variants. 
The program is not visible. The wlcomm.exe file is not a Windows system file. The file is digitally signed. The application can be removed using the Control Panel's Add\Remove programs applet. The process listens for or sends data on open ports to a LAN or the Internet. Therefore the technical security rating is 34% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall the program Windows Live Communications Platform or Windows Live Communications, or ask the software vendor for support. Click on Windows Live Communications Platform or Windows Live Communications in Windows Control Panel (Software or Programs section) to uninstall it.

Recommended: Identify wlcomm.exe related errors

If wlcomm.exe is located in a subfolder of the user's profile folder, the security rating is 76% dangerous. The file size is 231,496 bytes. The program is not visible. The program starts upon Windows startup (see Registry key: MACHINE\Run, Run). The software listens for or sends data on open ports to a LAN or the Internet. It is not a Windows system file. Wlcomm.exe is able to record keyboard and mouse inputs and monitor applications.

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

Windows live messenger
if disabled it disconnects from windows live messenger, so it's necessary for its functionning
Communicate with others on the web
It is related to Windows Live Messenger. However, very recently it has been causing problems with my Windows Live Messenger.
live messenger
Caused key/mouse inputs to become scrambled and behave erroneously (as if ctrl key was held) even after reboot. Ending process fixed issue
it is a windows live messenger service, if you experience problems with the amount of memory that this file uses than just exit the Windows Live Messenger, not just to close it... right-click on the messenger icon on the taskbar (most of time is near the clock) and click exit. Hopefully this can be helpful.
  Amir Meta  
It is making my MSN Messenger crach every time I open it
It is a part of windows Live messenger
Looks like it's located in C:\Program Files\Windows Live\Contacts; on my machine it consumes 14.908 KBytes according to the Windows XP SP2's Task Manager
cause problems with my pc - cpu 50% - just the wlcomm.exe. its right that it's for windows live :/
mesengers thing. When put video call it gets like 72% of cpu
it's windows live messenger
Wlcomm[1].exe is the dangerous one! I even have it as a virus.
When i close it, the winlive messenger diconnecting
It's a background task responsible for synchronizing your Live Messenger contact list. If you have recently connected your Live Messenger client to Facebook or other social media, it is this very association that caused the increase in processor utilization. My suggestion is you disassociate from all social services and run as a stand-alone MSN Messenger service and your system performance will return to something close to normal. And, perhaps MS will find a way to troll poll these sites with fewer CPU cycles in the future. WLCOMM.exe belongs in C:\Program Files\Windows Live\Contacts\ only.
  Minister of Mayhem   (further information)
messenger related-100% cpu use when trying to start
  Dave Ford  
It is needed for Windows Live Mail
  Curt Lofgren  
This was making a background noise on the audio, not affected by the volume control but really annoying if you sit between powered speakers! Selected Windows Essentials and removed Windows Messenger, that cured it.
  Robert Hitchcock  

Rating chart

Summary: Average user rating of wlcomm.exe: based on 30 votes with 19 user comments. 11 users think wlcomm.exe is essential for Windows or an installed application. 7 users think it's probably harmless. 7 users think it's neither essential nor dangerous. 4 users suspect danger. One user thinks wlcomm.exe is dangerous and recommends removing it. 2 users don't grade wlcomm.exe ("not sure about it").

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Best practices for resolving wlcomm issues

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

wlcomm.exe [all]