Hi,
We have successfully implemented ClamD/ClamDScan (part of the ClamAV free antivirus suite) which is magnitudes faster than using only ClamScan (0.015 Seconds vs 7 Seconds on a test file).
For others wishing to increase the speed on their virus scan can I suggest that you add ClamDScan to your approved virus scan template or, at least, add this to the FAQ.
We are using the natively compiled ClamAv from http://www.clamav.net/
The ClamD "deamon" is installed using Microsoft’s Srvany service. Google SrvAny for info on how to do this.
Ability is then simply set up to use ClamDScan as below:
Since changing to this method our CPU useage has dropped dramatically!
Regards,
Mike Robertson
SatWeb ISP
South Africa