I’m curious if Avast can scan my files on demand from my download manager. I have the option in Leechget to support virus scanning, but I have no idea what switches/parameters I need to use to get Avast to scan a single file passed on by the download manager. I assume you use AshQuick.exe, but what is the file parameter?
Try to insert AshQuick’s full path name there - without any parameters.
e.g. “C:\Program Files\ALWIL Software\avast4\ashQuick.exe”
That worked. 
I guess I was making things more complicated than they needed to be.
LeechGet had a suggestion in it’s help file that I could use this;
“C:\Program Files\myProgram\myProgram.exe” -file=“%FILE%”
It seems to be passing the file over without the parameter though.