in reply to CGI Antivirus Scanner

Maybe you want to take a look at the Viralator project: http://viralator.sourceforge.net. Although it works using a redirector (and should not be suitable for your needs) it does works with Clamav, but uses a different approach to it (it uses the IPC:Open3 module and the clamscan or clamdscan Clamav clients).

For better performance I suggest you to use the clamdscan client.

Alceu Rodrigues de Freitas Junior
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"You have enemies? Good. That means you've stood up for something, sometime in your life." - Sir Winston Churchill