What is bho.dll?

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

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Bho.dll file information

The process known as Finjan Secure Browsing Extension or GamePlayLabs Browser Helper Object or bho module or vfd.dll or sl.dll or McAfee Script Scanner Inproc Server DLL or DocuShare Client SDK library or Endeavors AppExpress Client

belongs to software Lexmark Printable Web or MTWB or Finjan Secure Browsing or bho module or SelectionLinks or McAfee VirusScan Enterprise or 2YourFace or VideoFileDownload or GamePlayLabs Plugin or DocuShare Client SDK or Secret Crush Revealer or Browser Plugin

by MTWB ( or Finjan LTD or GamePlayLabs or OutBrowse or Network Associates ( or SelectionLinks or VideoFileDownload or Endeavors Technology or Xerox (

Description: Bho.dll is not essential for Windows and will often cause problems. The file bho.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 8/7/XP are 180,224 bytes (51% of all occurrences), 732,672 bytes and 30 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 1808648B-3102-4293-8AD3-06AF71D3321B or 4006DCA3-433D-4FC8-AC36-42DA7797DCB7 or 30 more variants. The program has no visible window. It is able to change the behavior of, or monitor Internet Explorer. The file is not a Windows system file. The service has no detailed description. The process has no file description. Bho.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 76% dangerous, however you should also read the user reviews.
If there are any problems with bho.dll, you can also remove the entire program Lexmark Printable Web or Lexmark using Windows Control Panel.

Recommended: Identify bho.dll related errors

External information from Tony Klein:

Important: Some malware also uses the file name bho.dll, for example Adware.BHO.WSZ or Application.Generic.408068 (detected by F-Secure), and Trojan.Adclicker or Adware.Gen (detected by Symantec). Therefore, you should check the bho.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

Some are legitimate BHO
  Iris Kilpatrick  
bho module
Finjan SecureBrowsing provides you with safety ratings of URLs showing in your browser.
  Newman   (further information)
Panda Antivirus block BHO.dll everytime i start my laptop, i am running Windows Vista. The program are under C:\Program Files\SGPSA and i cant delete it. DonĀ“t know if it is a real virus ore not
  Ronny Pelizzoli  
related to ie3sh
  abdalaziz muhammad  
It is related to Fast Browser Search / Make the Web Better / My Web Tattoo.
C:\Program Files\SGPSA\BHO.dll
This is def a spyware. It controls IE and other counter parts of the OS. I am on vista nad am trying to delete it
bho.dll is a module belonging to an advertising program by BHO. This module monitors your browsing habits and distributes the data back to the author's servers for analysis. This also prompts advertising popups.
  Mike   (further information)
This is linked to Lexmark s300 printer on my PC. Installed with Lexmark install CD.

Rating chart

Summary: Average user rating of bho.dll: based on 17 votes with 10 user comments. 7 users think bho.dll is essential for Windows or an installed application. 3 users think it's neither essential nor dangerous. 4 users suspect danger. 3 users think bho.dll is dangerous and recommend removing it. 3 users don't grade bho.dll ("not sure about it").

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Best practices for resolving bho issues

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

bho.dll [all]