Most antivirus programs identify wmsncs.exe as malware—e.g. Microsoft identifies it as Worm:Win32/Kolabc.A or Backdoor:Win32/IRCbot.gen!N, and TrendMicro identifies it as TROJ_AGENT.WFA or TROJ_BBJC.A.
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The process appears to belong to software Microsoft Windows Operating System by Microsoft Windows NET Runtime Optimization Service (www.microsoft.com).
Description: Wmsncs.exe is not essential for Windows and will often cause problems. The wmsncs.exe file is located in a subfolder of C:\Windows.
Known file sizes on Windows 10/8/7/XP are 189,990 bytes (57% of all occurrences), 189,216 bytes, 133,479 bytes or 140,800 bytes.
There is no description of the program. The program is not visible. The file is not a Windows system file. The application listens for or sends data on open ports to a LAN or the Internet. Wmsncs.exe is able to monitor applications and manipulate other programs. Therefore the technical security rating is 71% dangerous, however you should also read the user reviews.
Recommended: Identify wmsncs.exe related errors
If wmsncs.exe is located in a subfolder of "C:\Program Files\Common Files", the security rating is 36% dangerous. The file size is 156,435 bytes (33% of all occurrences), 334,183 bytes or 187,155 bytes. The program has a visible window. The software has no file description. The process starts upon Windows startup (see Registry key: DEFAULT\Run, MACHINE\Run, MACHINE\User Shell Folders, Winlogon\Shell). The wmsncs.exe file is not a Windows system file. wmsncs.exe appears to be a compressed file.
If wmsncs.exe is located in a subfolder of the user's profile folder, the security rating is 26% dangerous. The file size is 187,155 bytes (50% of all occurrences) or 189,990 bytes. The program has a visible window. There is no file information. The application starts when Windows starts (see Registry key: DEFAULT\Run, MACHINE\Run, MACHINE\User Shell Folders, Winlogon\Shell). Wmsncs.exe is not a Windows core file. wmsncs.exe appears to be a compressed file.
Important: You should check the wmsncs.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.
The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active wmsncs process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the wmsncs.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
A clean and tidy computer is the key requirement for avoiding PC trouble. 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.