What is MSASCul.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 MSASCul.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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MSASCul.exe file information

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

The Microsoft Library Component process does not have any vendor information.

Description: MSASCul.exe is not essential for the Windows OS and causes relatively few problems. The file MSASCul.exe is located in a subfolder of the user's profile folder. The file size on Windows 10/8/7/XP is 79,393 bytes. 
There is no file information. The program is not visible. The program starts upon Windows startup (see Registry key: MACHINE\Run, User Shell Folders). The software uses ports to connect to or from a LAN or the Internet. It is not a Windows system file. MSASCul.exe is able to record keyboard and mouse inputs and manipulate other programs. Therefore the technical security rating is 76% dangerous.

Recommended: Identify MSASCul.exe related errors

If MSASCul.exe is located in a subfolder of "C:\Program Files", the security rating is 36% dangerous. The file size is 144 bytes. The program has a visible window. There is no file information. The program starts when Windows starts (see Registry key: MACHINE\Run, User Shell Folders). It is not a Windows system file. MSASCul.exe is able to record keyboard and mouse inputs and manipulate other programs. MSASCul.exe appears to be a compressed file.

Important: Some malware also uses the file name MSASCul.exe, for example TROJ_SPNR.06E011 (detected by TrendMicro), and Win32:Spyware-gen [Spy] (detected by Avast). Therefore, you should check the MSASCul.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.


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Best practices for resolving MSASCul issues

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

MSASCul.exe [all]