Stamps.com Internet Postage 2.2.3
(Requires 15MB of disk space)
Stamps.com Internet Postage enables you to use your PC to print postage directly onto envelopes or labels.  Stamps.com prints PC Postage - a brand new form of postage approved by the United States Postal Service (USPS).  Stamps.com postage is real postage; use it just like a regular stamp or a postage meter mark.