DavidR
2
No contest, chalk and cheese.
If you have Outlook 2003 then enable the Outlook/Exchange provider (plug-in), that way avast works inside MS Outlook and gives for more options on handling detections, etc. Check out the avast Help file.
Ensure that the avast plug-in isn’t disabled in MS Outlook, that is the usual problem or you haven’t got Outlook started as the ‘waiting for a subsystem to start’ is an avast message.
Outlook 2003 > Help > About > Disabled items
If you have no other email clients then technically you don’t need the Internet Mail provider enabled.