How to remove the plugin1 virus

Most antivirus programs identify plugin1.dll as malware.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the plugin1.dll malware

Plugin1.dll file information

The process known as BHO appears to belong to software BHO or SolidWorks (version 2007 API SDK) by unknown.

Description: Plugin1.dll is not essential for Windows and will often cause problems. The plugin1.dll file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 53,760 bytes (60% of all occurrences), 134,656 bytes, 140,800 bytes, 53,248 bytes or 140,288 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 9125F250-EB4F-49fe-AE17-C17665873A5C or 9BB5B49C-0D59-418d-A6A5-F6373B8FEF64 or 991EF04C-93CF-469b-A2BE-CC1B3347566F. The plugin1.dll file is a file with no information about its developer. The program is not visible. The plugin1.dll file is able to change the behavior of, or monitor Internet Explorer. The service has no detailed description. Plugin1.dll is not a Windows core file. plugin1.dll appears to be a compressed file. Therefore the technical security rating is 83% dangerous.

Uninstalling this variant: In the event of any problems with plugin1.dll, you can also uninstall BHO or SolidWorks 2007 API SDK from your computer using the Control Panel applet Uninstall a Program.

Recommended: Identify plugin1.dll related errors

Important: You should check the plugin1.dll process on your PC to see if it is a threat. If BHO Virus 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 plugin1 issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active plugin1 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the plugin1.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

plugin1.dll [all]