What is CatchOp.dll?

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

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CatchOp.dll file information

The process known as Catcher Opera Integration Module belongs to software Catcher Module by ReGet Software (

Description: CatchOp.dll is not essential for Windows and will often cause problems. CatchOp.dll is located in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 74,810 bytes (71% of all occurrences), 73,786 bytes or 74,298 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 program has no visible window. There is no detailed description of this service. The file is not a Windows system file. It can change the behavior of other programs or manipulate other programs. CatchOp.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 64% dangerous, however you should also read the user reviews.

Uninstalling this variant: You have the option to uninstall the associated program (Start > Control Panel > Uninstall a Program > ReGet Junior).

Recommended: Identify CatchOp.dll related errors

Important: Some malware camouflages itself as CatchOp.dll. Therefore, you should check the CatchOp.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

On Windows XP SP2 it makes Explorer crash on startup, but if one runs Computer Resources before Explorer, then all seems working! No antispyware program detected it (I use AdAware, Spybot, Ms Antispyware). I deleted CatchOp.dll in folder "C:\Program Files\Common Files" and worked the problem out!
catches clicks in your browser.
It definetely makes not possible to login WinXP SP2. Explorer task is crashed, thus u ain't able to make any operation that depends on "explorer.exe" (ex.: run any program). To handle it, U should open Task Manager (Ctrl+Alt+Del), switch to Application tab, choose Run (or New Task), there find a Browse button that allows to get to the folders :)) Than we browsing the path \Program Files\Common Files\Reget Common\ and find there our beloved catchop.dll (u'd check "All Files" instead of "programs (exe)" to see it) AND KILL IT!!! Log out and have fun!
I met the same problem with Hfhgso, I should go to have a try to delete it

Summary: Average user rating of CatchOp.dll: based on 3 votes with 4 user comments. One user thinks CatchOp.dll is essential for Windows or an installed application. 2 users suspect danger. One user is not sure about it.

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Best practices for resolving CatchOp issues

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

Other processes

CatchOp.dll [all]