Outlook: possible to script import of PST?

I'm all about automation... Is it possible to open a PST in outlook via the command line? A lot of our users have PSTs all over the place and it takes a good 15 minutes in some cases to open them all. I could easily script this process if I can find a way to open/import them via command line.

Anyone got any ideas?

EDIT: pertinent info: Exchange 2003, I want to open the PSTs locally, not import them into the exchange account