And one more thing :-)
The other "mystery" is that Avast didn't pick up the lnchtour file on my old pc & come to think of it, when I uploaded the lnchtour file from the old pc(& today on the pc in question), VT said that the file had already been scanned. I, of course, chose the option to scan again both times, but yesterday on the old pc, the file was not shown as a positive by Avast on VT. It only showed as a positive on my newer pc, not the old pc & not on VT. Yesterday, when I uploaded the file from the old pc, VT did show 4 other positive scans for lnchtour.exe & today they only showed one. So it looks like other AV's were also having an FP problem.