What is MouseHook.dll?

MouseHook.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 MouseHook.dll is a Windows system file or if it belongs to an application that you can trust.

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MouseHook.dll file information

The process known as Active Desktop Calendar (version 7.95) belongs to software RocketDock or Active Desktop Calendar by XemiComputers.

Description: MouseHook.dll is not essential for Windows and will often cause problems. MouseHook.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 3,584 bytes (69% of all occurrences), 34,304 bytes, 49,152 bytes or 44,032 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The file is a file with no information about its developer. The program has no visible window. The service has no detailed description. The file is not a Windows core file. It can change the behavior of other programs or manipulate other programs. MouseHook.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 84% dangerous, however you should also read the user reviews.

Uninstalling this variant: You could uninstall RocketDock or CursorAttention from your computer using the Control Panel applet Uninstall a Program.

Recommended: Identify MouseHook.dll related errors

If MouseHook.dll is located in a subfolder of the user's profile folder, the security rating is 86% dangerous. The file size is 27,648 bytes (87% of all occurrences) or 22,016 bytes. There is no information about the author of the file. The program has no visible window. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. The file is not a Windows core file. MouseHook.dll appears to be a compressed file.

Important: Some malware also uses the file name MouseHook.dll, for example Generic.dx (detected by McAfee), and Mal/FakeVirPk-A (detected by Sophos). Therefore, you should check the MouseHook.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.


User Comments

Part of the RocketDock application.
  nemo   (further information)
It is a DLL designed to stop Unwanted and disruptive Mouse wheel movement and rolling over record list when the behavior is not wanted.
  David Eakin   (further information)
file is listed at for turning off the mouse scroll wheel in Access databases
    (further information)
Disables the mouse scroll function (ie. on a form in MS Access)
Part of LingoPad
  nero   (further information)
According to Malwarebytes' Anti- Malware, Mousehook.dll is in fact a Trojan.FakeAlert
mine has been infected with a trojan - so it is vulnerable but not in itself bad perhaps
There is a version used a lot with MS Access
  Andy Fell   (further information)
It is part of Paragon Software's PenReader application. Seems there are still some problems with 64bit OS though.
Used with MSAccess to prevent mousewheel scroll through records

Rating chart

Summary: Average user rating of MouseHook.dll: based on 12 votes with 10 user comments. 5 users think MouseHook.dll is essential for Windows or an installed application. 5 users think it's neither essential nor dangerous. 2 users think MouseHook.dll is dangerous and recommend removing it. 3 users don't grade MouseHook.dll ("not sure about it").

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Best practices for resolving MouseHook issues

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

MouseHook.dll [all]