This small, easy and simple mod allows you to easyly print multiple invoices/packing slips in one go.
It uses the browser feature (that Opera, Mozilla and IE support) to print all frames on separate pages.
The original invoice/slip (or whatever) output is printed, no PDF is generated and no new invoice templates are needed.
This first version is intended for, and tested on, MS2, probably very easy to adapt to other versions, or even to other scripts.
contributed as a result of this thread: http://forums.oscommerce.com/index.php?showtopic=126568
(no official support thread exists yet, so use the thread mentioned above f.t.b.)