Microsoft’s Pfbackup for Outlook

I’ve install pfbackup in outlook to backup personal folders in outlook. In the option section it doesn’t give the option to select arhive folder. It not even listed there. Has
anyone experience this before and if so do you
have a solution to correct this? I never came across this before. All my other computer with
outlook give me the option in backup to select the folders that i want to backup. Any help or
suggestion would be greatly appreciated.
Guy J. Simard