How to prevent Avast to launch scan engine automatically

[Arkanos]

Hi all,

Recently, my Avast home free edition runs automatically everytime i download something from internet!
I mean, Avast antivirus launches scan engine automatic just after a file download from internet
It is a little bit annoying to me to stop the scan everytime!
 So how can i do to stop that processus to run automatically? Should i have to do somewhere on Avast user interface?

Any suggestion will be appreciated.
Thanks in advanced for your help and your time.[/font][/color]

Arkanos
arkanos1@free.fr

[Lisandro]

Which download manager do you use?
Maybe you (or anybody else) set to scan the downloaded files with ashQuick.exe.