How to remove the Conduit Toolbar malware

Some anti-malware programs classify prxtbappb.dll as a harmful extension to Internet Explorer: for example CommunityToolbar (detected by Symantec), and TROJ_GEN.R047C0EDE15 (detected by TrendMicro). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated Conduit Toolbar 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 Conduit Toolbar and how to get rid of it.

Click here to automatically remove the Conduit Toolbar malware

Prxtbappb.dll file information

The process known as Conduit Toolbar belongs to software appbario7 Toolbar or appbario12 Toolbar or appbario2 Toolbar by Conduit (

Description: Prxtbappb.dll is not essential for the Windows OS and causes relatively few problems. The file prxtbappb.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 226,592 bytes (71% of all occurrences) or 176,936 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 6926c7f7-6006-42d1-b046-eba1b3010315 or cdf97ee2-ded0-4369-835e-99dd08225fa5 or 465fcfbb-47a4-4866-a5d5-d12f9a77da00 or 525ba996-1ce4-4677-91c5-9fc4ead2d245 or 5373a31d-9410-45e2-b299-4f61428f0be4. The program has no visible window. It is able to monitor web browsers. It is digitally signed. Prxtbappb.dll is not a Windows system file. The file is a Verisign signed file. Therefore the technical security rating is 36% dangerous.

Uninstalling this variant: It is possible to do the following:
  1) uninstall the software appbario7 Toolbar or appbario12 Toolbar using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)
  2) turn to the software developer [1][2], Toolbar, for advice.

Recommended: Identify prxtbappb.dll related errors

Important: Some malware camouflages itself as prxtbappb.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example CommunityToolbar (detected by Symantec), and TROJ_GEN.R047C0EDE15 (detected by TrendMicro). Therefore, you should check the prxtbappb.dll process on your PC to see if it is a threat. If Conduit 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 prxtbappb issues

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

prxtbappb.dll [all]