Some anti-malware programs classify Coupon Companion.dll as a harmful extension to Internet Explorer: for example Adware.Crossid (detected by Symantec), and Gen:Variant.Adware.VidSaver.1 (detected by BitDefender). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated Coupon Companion BHO software, it's no surprise. In most cases, this kind of adware is installed on the side when you install a freeware product like a Youtube Downloader or a PDF Converter. In the following selection, you can read more about Coupon Companion BHO and how to get rid of it.
Description: Coupon Companion.dll is not essential for the Windows OS and causes relatively few problems. The Coupon Companion.dll file is located in a subfolder of "C:\Program Files".
Known file sizes on Windows 10/8/7/XP are 617,344 bytes (60% of all occurrences), 488,832 bytes, 612,736 bytes or 616,832 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 11111111-1111-1111-1111-110011441193. The program is not visible. It is able to monitor web browsers. The file has a digital signature. It is not a Windows core file. Coupon Companion.dll is able to monitor applications. Therefore the technical security rating is 50% dangerous.
Recommended: Identify Coupon Companion.dll related errors
Important: Some malware camouflages itself as Coupon Companion.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Adware.Crossid (detected by Symantec), and Gen:Variant.Adware.VidSaver.1 (detected by BitDefender). Therefore, you should check the Coupon Companion.dll process on your PC to see if it is a threat. If Coupon Companion BHO 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 ▾
The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active Coupon Companion process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the Coupon Companion.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.