Command Line Switch for local scan?

Is there a way to create a shortcut that you can simply click and perform a scan of your local drives? I know there has tot be one, but can’t seem to nail it down.

See: http://forum.avast.com/index.php?board=2;action=display;threadid=4297 for memory scanning.
For drivers could be easier: “C:\Program Files\Alwil Software\Avast\ashQuick.exe” "C:" "D:"

Please, make some tests ;D