BitDefender Online Virus Scanner - by BitDefender

BitDefender Online Scanner is an on-demand virus scanner which incorporates the award-winning BitDefender scanning engines. You can use it to scan your system's memory, all files and drives' boot sectors, and to automatically clean infected files.

Internet Explorer 4+ is required for the Online Scanner to work.

CA Antivirus Web Scanner - by Computer Associates

CA's eTrust Antivirus Web Scanner is a fast, easy to use antivirus tool capable of detecting and cleaning the latest viruses, trojans and worms from within your web browser. The software is free of charge, and requires no additional components. All that is required for the use of the web scanner is an Internet connection, and Microsoft Internet Explorer Version 4 or later.

ESET Online Scanner - by ESET

ESET Online Scanner is a fast and free tool that detects and removes threats on your PC. Utilizing only your browser, it scans your computer with ESET's award-winning ThreatSense engine.

• Microsoft Windows 7/Vista/XP/2000/NT (32/64-bit)
• Microsoft Internet Explorer 6 or later (with ActiveX turned on), Support for non-IE browsers (Firefox, Opera, Netscape, Chrome, Safari and others)
• Memory: 32 MB
• Disk Space: Minimal – 15 MB, Optimal – 30 MB
• User Permissions: Administrator rights are required to run ESET Online Scanner

F-Secure Online Virus Scanner - by F-Secure

Windows only. Windows 7 (64-bit or 32-bit), Windows Vista (64-bit or 32-bit), Windows XP Home Edition and Professional (32-bit)

Supported browsers: Internet Explorer 9 (32-bit), Internet Explorer 8 (32-bit), Internet Explorer 7 (32-bit), Mozilla Firefox 8 & 9, Opera 11.x, Google Chrome. Note: JavaScript needs to be enabled and you need to have at least Version 6 Update 10 of Java Runtime Environment installed.

Housecall Online Virus Scanner - by Trend Micro

Trend Micro™ HouseCall is an application for checking whether your computer has been infected by viruses, spyware, or other malware. HouseCall performs additional security checks to identify and fix vulnerabilities to prevent reinfection.

• Microsoft Internet Explorer (IE) 6.0 or later
• Mozilla Firefox 1.0.5, 1.0.6, 1.0.7, 1.5
• Mozilla 1.7.12

McAfee FreeScan Online Virus Scanner - by McAfee

McAfee FreeScan helps you detect thousands of viruses on your computer. Based on the award-winning McAfee VirusScan engine, FreeScan searches for viruses, including the latest known "in the wild" viruses, and displays a detailed list of any infected files. Should viruses be found, FreeScan even provides links to more information about the viruses and what you can do to clean your system.

• Windows 98, ME, 2000, or XP
• Microsoft Internet Explorer 5.5 or higher

Panda ActiveScan 2.0 Online Virus Scanner - by Panda Software

You can use Panda ActiveScan 2.0 whenever you want to make sure that your PC is free from all types of threats. Also, if you are registered or have bought the paid version you will be able to disinfect the threats that ActiveScan 2.0 finds on your PC.

• Internet Explorer 6 or 7, 32-bit version.
• Mozilla Firefox 1.5 or later.
• Have Javascript execution enabled.

Pest Patrol Adware & Spyware Scanner - by Computer Associates

When you receive e-mail, visit websites, or download files, spyware can sneak into your PC and reveal your deepest secrets to hackers and spammers. Spyware can effect system performance, slow down internet access, and uncover personal information.

Now, with CA's eTrust PestPatrol, you can be proactive and protect yourself from these digital spies/pests.

Requires Internet Explorer & ActiveX

Symantec Online Security Scanner - by Symantec

Virus Detection checks for known threats, including top threats identified by Symantec Security Response.

Virus Detection provides an analysis of your results and offers suggestions for further action. It does not examine compressed files.

Requires Microsoft Internet Explorer 5.0 or higher or the latest version of AOL with ActiveX and scripting enabled.