Computer Security Wiki

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ClamWin 0.95.1 running on Windows XP

Developed by


Program Language

C++ and Python

Type Anti-virus
License GNU General Public License

ClamWin is free, open source antivirus software for Microsoft Windows. It provides a graphical user interface to the ClamAV (Clam AntiVirus) engine.


  • Scanning scheduler (only effective with user logged in).
  • Automatic virus database updates on a regular basis.
  • Standalone virus-scanner.
  • Context menu integration for Windows Explorer.
  • Add-in for Microsoft Outlook.
  • A portable version that can be used from a USB flash drive.

Real-time scanning[]

ClamWin does not yet automatically scan files as they are read and written. This feature is planned for inclusion in the next major version update.[1] However, this feature has been claimed to be in development since at least 10 December 2005.[2] For users of older systems, it is currently possible to add this functionality by using Winpooch.


In the 1 - 21 June 2008 test performed by, ClamWin version 0.93 detected 54.68% of all threats and ranked 37th out of 49 products tested; the best scored over 99%.[3]

In the 10 August-05 September 2009 test performed by, ClamWin version 0.95.2 detected 52.48% of all threats and ranked 43 out of 49 products tested; the best scored 98.89%.[4]

See also[]


External links[]