Well I hope that by your silence here that all the experts are confirming that everything sited above is “NORMAL” Avast behavior. Apparently Avast does flag files that it does not see with a previous load of Win, that are confirmed by VT, that names are changed and prevented from deletion by Avast. Then Avast clears them all with next reboot of computer. BTW, I got the cameras to work on one test computer that I applied your fix on and installed a better firewall. They even no longer give the multisecond delay as before but show real live data. Thanks.