Antivirus companies provides a facility to scan a file(s) online, if you want know about online virus scanner tool than click on the below link.
This article will cover about the best antivirus solution for desktop computing
Avast AntivirusAvast Free Antivirus is a well-rounded free antivirus package: It does a solid job at blocking malware, has a pleasant interface, and scans files quickly. It provides the advanced firewall that automatically prevent hacker attack. Avast internet security provides the effective solution against spam(er).
Avira antivirus did a great job and currently doing a great job to protect the user's from viruses and worms, it can fight against Internet spammers and against adware(s), so overall it is a good solution to use.
Comodo Internet Security
Comodo Internet security provides a wonderful features to scan and destroy the known threat for your PC health, beside antivirus solution it provides a firewall solution to protect your computer from hackers. Comodo give a feature to analyse the incoming and outgoing packets from your computer, a effective firewall.
Panda Cloud Antivirus
Panda security provides a range of different tools to protect a computer, panda cloud antivirus is easy to use and a powerfull antivirus solution for the premises,
Microsoft Security Essentials
Microsoft Security Essentials provides real-time protection for your home or small business PC that guards against viruses, spyware, and other malicious software.
Microsoft Security Essentials is a free download from Microsoft that is simple to install, easy to use, and is automatically updated to protect your PC with the latest technology.
Thanks Irfan Shakeel ( http://www.ehacking.net )