What is xunleiBHO_Now.dll?

XunleiBHO_Now.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 XunLeiBHO.

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XunleiBHO_Now.dll file information

The process known as XunLeiBHO belongs to software XunLeiBHO Module by Thunder Networking Technologies,LTD (

Description: XunleiBHO_Now.dll is not essential for Windows and will often cause problems. XunleiBHO_Now.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 128,464 bytes (53% of all occurrences), 198,096 bytes and 5 more variants. 
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 889D2FEB-5411-4565-8998-1DD2C5261283. The program has no visible window. The file is able to change the behavior of, or monitor Internet Explorer. The xunleiBHO_Now.dll file is not a Windows system file. The file is a Verisign signed file. It is certified by a trustworthy company. XunleiBHO_Now.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 35% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with xunleiBHO_Now.dll come up, you may also safely remove the program using the uninstall program of Thunder (Control Panel ⇒ Uninstall a Program).

Recommended: Identify xunleiBHO_Now.dll related errors

Important: Some malware camouflages itself as xunleiBHO_Now.dll. Therefore, you should check the xunleiBHO_Now.dll process on your PC to see if it is a threat. If XunLeiBHO 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.


User Comments

part of the Thunder download tool
have something to do with Thunder 5

Summary: Average user rating of xunleiBHO_Now.dll: based on 2 votes with 2 user comments. 2 users think it's neither essential nor dangerous.

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Best practices for resolving xunleiBHO_Now issues

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

Other processes

xunleiBHO_Now.dll [all]