If you don't want to export/import all the time you might need to set up an access db with a linked (not imported) table to the outlook address book.
Then set up a ODBC connection to the access file, and you should be able to read from the outlook address book as if it were any ODBC database.
I've been trying to find a ODBC driver for outlook, but only MS Office seems to be able to access the data live.
Hope this helped.