We designed and developed an E-commerce software product available to customers as an ASP. It is currently being used by more than 2000 customers. The product has advanced catalog management and inventory management features including secure order processing and order tracking. It is capable of handling payment processing through all major gateways like Cybercash, VeriSign, Authorize.Net etc. It has real-time integration with external systems for shipping and tax calculations. Site builder tools are also integrated with this product for providing a complete user experience.