first you can keep your sanity, because if you try to program the frequencies, talkgroups and names by hand you will go nuts.
second, it will permit you to upload frequency information from the database here at radio reference directly into WIN96 and on into your scanner.
it will also let you open up some frequencies that the scanner will not receive now. it will not open up cellphone frequencies.
you must be a paid subscriber to this site to use the web import from here to your scanner. If you don't want to do that then you can access the database and write them for entry.