iisCARTship gives developers, and ultimately consumers, the choice of shipping companies with over 25 shipping services from the 3 largest shipping companies and, more importantly, redundancy should a given companies system be inaccessible. iisCARTship will return real-time shipping rates from any combination of the United States Postal Service, Federal Express, and United Postal Service. In addition, the return can be limited to the specific services of your choice. iisCARTship�s powerful collection returns real-time shipping data which can be easily formatted to meet your needs in a table, drop down combo box or group of radio button.