The address book in Outlook and in Outlook Express is the same (.WAB).
Open the addressbook, file, export, as .csv
Open the file in Excel work from there.
You can use a filtered list if you want or just delete the ones you
don't want. That worksheet must be moved to the first position for
mail merge to work.
Excel does not do envelopes etc, itself, hopefully you also have
MS Word and can use Mail Merge see my page, if this is
new information to you.
Mail Merge, Printing Labels using Mail Merge with data from Excel
http://www.mvps.org/dmcritchie/excel/mailmerg.htm
If you don't have MS Word you will have a bit of trouble doing this
but I think there may be some links on John Walkenbach's pages, look
in the related area of my page above. l
