As we’ve mentioned previously, Dr.Web CureIt is an efficient and excellent portable antivirus program, ClamWin Free Antivirus is an alternative to it, meanwhile, it’s open source.

Features
- Scan and detect virus and spyware.
- Include or exclude files using the filters you specified.
- Scheduled scanning.
- Update regularly renewed virus database automatically or manually.
- Send email alert on virus detection.
- Scan incoming and outgoing email messages for Microsoft outlook.
- Extract attachments and macros from Microsoft office documents.
ClamAV does not support real time scanning, it will not check each opened and closed file in the background for you. It’s not recommended to use ClamAV as the main tool for virus defending due to its low virus detection rate.
More Reading
ClamWin runs on Windows 7 and Windows XP.
Download ClamWin from CNET, portable version.
Download the source code and Linux package from ClamAV.net.
