Webcheck.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if webcheck.dll is a Windows system file or if it belongs to an application that you can trust.
Description: The original webcheck.dll from Microsoft is an important part of Windows, but often causes problems. Webcheck.dll is located in the C:\Windows\System32 folder or sometimes in a subfolder of C:\Windows\System32.
Known file sizes on Windows 10/8/7/XP are 276,480 bytes (26% of all occurrences), 233,472 bytes and 64 more variants.
The program has a visible window. The application is loaded during the Windows boot process (see Registry key: ShellServiceObjectDelayLoad). The file is not a Windows system file. The file is a Microsoft signed file. Therefore the technical security rating is 4% dangerous, however you should also read the user reviews.
Recommended: Identify webcheck.dll related errors
How to recognize suspicious variants?
If webcheck.dll is located in a subfolder of "C:\Program Files", the security rating is 54% dangerous. The file size is 196,096 bytes. Webcheck.dll is not a Windows core file. The program is not visible. The file is able to change the behavior of, or monitor Internet Explorer.
If webcheck.dll is located in a subfolder of C:\Windows, the security rating is 0% dangerous. The file size is 233,984 bytes (40% of all occurrences), 276,480 bytes, 258,048 bytes or 236,544 bytes. The program has a visible window. The webcheck.dll file is a trustworthy file from Microsoft. The application starts upon Windows startup (see Registry key: ShellServiceObjectDelayLoad). It is not a Windows system file.
If webcheck.dll is located in a subfolder of "C:\Program Files\Common Files", the security rating is 89% dangerous. The file size is 34,304 bytes.
Important: Some malware disguises itself as webcheck.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the webcheck.dll 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.
A clean and tidy computer is the key requirement for avoiding problems with webcheck. 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 webcheck.dll 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.