Most antivirus programs identify gencrawler_gc.dll as malware.
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Description: Gencrawler_gc.dll is not essential for Windows and will often cause problems. Gencrawler_gc.dll is located in a subfolder of the user's profile folder or sometimes in a subfolder of "C:\Program Files" or in a subfolder of the "My Files" folder.
Known file sizes on Windows 8/7/XP are 431,104 bytes (50% of all occurrences), 428,544 bytes or 437,376 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 CA4520F3-AE13-4FB1-A513-58E23991C86D. Gencrawler_gc.dll is a file with no information about its developer. The program is not visible. The gencrawler_gc.dll file is able to monitor web browsers. There is no detailed description of this service. Gencrawler_gc.dll is not a Windows system file. Therefore the technical security rating is 80% dangerous, however you should also read the user reviews.
If you have any problems with gencrawler_gc.dll, you can uninstall the associated program (Start > Control Panel > Add/Remove programs > Media Finder or GroupMail :: Free Edition), use the software publisher’s support  or update  the program to the latest version.
Recommended: Identify gencrawler_gc.dll related errors
Important: You should check the gencrawler_gc.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 gencrawler_gc. 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 doing a repair of your installation, or in the case of Windows 8, 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 gencrawler_gc.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.