Boot up scan

I just installed the free version on a Windows 98 machine.

Do I need the pro edition to scan at boot up?

Or is there something I can put in my AUTOEXEC.BAT?

Or?

Thank you.

No, you don’t need the Professional Edition - I am afraid, however, that you’d need a different operating system.
The boot-time scan is not available on Windows 9x/ME.