How to remove the Alcohol malware

The basesr.dll file is a software component of Alcohol 120% by Alcohol Soft.
Basesr.dll is a DLL (Dynamic Link Library) file that is part of Alcohol 120%, a CD and DVD authoring tool. DLL files store data, code and resources needed by one or more programs in order to function correctly. This is not a critical Windows component and should be removed if known to cause problems. Alcohol 120% is a Windows-based software for writing data onto to optical discs. The program can also be used to mount and emulate disc images in Alcohol's proprietary .mds/.mdf formats. Alcohol 120% is popularly used by software 'crackers' to bypass disc copy protection methods such as SafeDisc, SecuROM, and Data Position Measurement (DPM). Alcohol Soft is an Irish company that develops the Alcohol line of disc burning software. The company was founded in 2002 and is currently based in Belfast, Ireland.

BaseSr stands for Alcohol Base Service

Most antivirus programs classify basesr.dll as a harmful extension to Internet Explorer: for instance Rootkit.Win32.Podnuha.ey or Rootkit.Win32.Podnuha.px (detected by Kaspersky), and Trojan:Win32/Boaxxe.H or Trojan:Win32/Boaxxe.B (detected by Microsoft). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated Alcohol 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 Alcohol and how to get rid of it.

Click here to automatically remove the Alcohol malware

Basesr.dll file information

The process known as Alcohol (version 120%) appears to belong to software Alcohol (version 120%) by Alcohol Soft Development Team (

Description: Basesr.dll is not essential for Windows and will often cause problems. The basesr.dll file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 88,576 bytes (25% of all occurrences), 98,048 bytes, 95,744 bytes, 94,720 bytes or 110,080 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 4A26DD50-E4D3-491A-8490-436DE8FE0B7D or EA208DCF-F806-4D3D-B045-E15B7066067D or 4 more variants. The program has no visible window. Basesr.dll is located in the Windows folder, but it is not a Windows core file. Basesr.dll is able to monitor web browsers. The service has no detailed description. The file is not a Windows core file. The process has no file description. basesr.dll appears to be a compressed file. Therefore the technical security rating is 88% dangerous.

Recommended: Identify basesr.dll related errors

Important: You should check the basesr.dll process on your PC to see if it is a threat. If Alcohol 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 basesr issues

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

basesr.dll [all]