Uses: / This can be used by ecommerce / online stores that ship via United States Postal Service ( USPS). You can calculate the actual USPS shipping cost in realtime and use it seamlessly in calculating each order's shipping charge. This will avoid overcharging / undercharging and your customers will feel confident that they are not getting ripped off by exorbitant shipping fees. / Technical info: / With this ASP based USPS online shipping calculator, there is no need to register any DLL or COM objects in your hosting server. This is very useful to many websites that are hosted by a 3rd party hosting server because most of the time, these 3rd party hostings do not allow the installation of ACTIVE-X, COM or DLL objects. / You simply save the included ASP file into your website html/asp folder. You can call the function from anywhere in your asp pages and use different parameters like origin and destination zip code, shipment weight and delivery options. / ? Free technical support. / ? includes full source code and User's Guide