avast can only be used with pop3/smtp/imap email servers.
I’m not sure you will get AOL mail service without an outside mail client…

Besides this, waiting for a subsystem to start is the message of Outlook plugin (not Outlook Express). It’s waiting for MS Outlook to be started as it is a plugin: the main program must be running to the plugin be active.

You can have two viruses programs covering your email. I have! ;D