>>Avast anti-virus software finds a virus called Win32:Rbot-FVC in my VFP 9.0 executable while Norton and AVG don’t locate any viruses. Avast doesn’t find the virus in the development version, only in the run-time version. It would be nice to find that Avast is generating a false finding. Has anyone experienced a similar situation?
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>Recently Avast made a false positive on Refox. Grisoft was contacted and they made a patch to fix the problem.

I contancted Avast. They wrote back saying they changed their virus dictionary and that I should test it again. I did. No change. Same false positive. Hopefully they will make a patch.