hi all, i demand if is a good idea a small software which start automatically a scan process of clamwin for each new file into a directory,for sample "download" ,thank for your opinion

Yes - You should scan with an antivirus every file that you download before you run/execute the file. You can do a manual scan with ClamWin, but the ClamWin developers recommend that you use ClamWin as a backup to a real-time antivirus that automatically scans every file that is downloaded to your computer.

Thanks for using ClamWin!