All Outlook data is kept in the same file. The file you need to is your
Personal Folders file (*.pst) It's where all the mail, calendar, contacts
etc are stored.
Take a look at these pages for info on Outlook data:
http://www.slipstick.com/config/backup.htm

Signature
Russ Valentine
[MVP-Outlook]
>I want to transfer contacts from one computer to another -
> - same outlook software. HELP
>
> 2. I am using MSN email and when I connect I am putting
> messages in folders "on the computer" but I cannot find
> those messages on my computer. Where are they?