What is CShared.dll?

CShared.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about Crawler Toolbar.

Click to Run a Free Scan for CShared.dll related errors

CShared.dll file information

The process known as Crawler Toolbar belongs to software Crawler Shared Library by (

Description: CShared.dll is not essential for the Windows OS and causes relatively few problems. The CShared.dll file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 796,672 bytes (40% of all occurrences), 611,328 bytes, 832,464 bytes or 831,968 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include DB35C569-5624-4CFC-8043-E5139F55A073. The program has no visible window. It is able to monitor web browsers. There is no detailed description of this service. The file is not a Windows system file. CShared.dll is able to monitor applications. Therefore the technical security rating is 54% dangerous.

Uninstalling this variant: In case you experience problems using CShared.dll, you can uninstall Crawler Smileys or RebateInformer from your computer using the Control Panel applet Uninstall a Program, get help from the software vendor Crawler or update the program.

Recommended: Identify CShared.dll related errors

Important: Some malware camouflages itself as CShared.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the CShared.dll process on your PC to see if it is a threat. If Crawler Toolbar has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


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Best practices for resolving CShared issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active CShared process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the CShared.dll 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.

Other processes

CShared.dll [all]