Where does Microsoft Outlook store your mailboxes and contact files?
 

Anyone know? I want make backups of them..

open outlook....

-File
-import and export
-export to file
-personal folder file (.pst)
-choose what you want backed up if not all of it
-choose where you want to save it.....

to restore...just import it........

The actual files on my XP system are located:
C:\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Outlook

with exchange server .. well on the server....

on your own system sans server.... the paths people put up are good.

the best to do in either case is to make an export to PST

Tools-->Options-->Maintenance-->Store Folder

That will give you the location of what you're looking for.