Microsoft Office Word 2007-Envelopes, E Postage Properties Option?

In the old Microsoft Word 2003, the user is capable of printing an address on the envelope with an associated bar-code to make the USPS sending process go much faster. I believe this was accessed through E-postage properties.On Word 2007, for some reason, the same functionality is absent. Word 2007 allows you to print an address, however; only absent the bar code. Is there a way to put this functionality back in 2007 or is there an alternative way to activate it?When accessing E-postage properties through the 2007 version, it's saying that you have to install a third party application.