Since 1995, SalesCart Express has provided a complete open source ecommerce software for the windows platform. Designed for programmers and web developers in mind with an open-source checkout so that you can customize the checkout system or the SQL or Access database. Also available in single domain or with multi-domain licenses. With the multi-domain, build as many shopping carts as you want from a single seat. Step-by-step wizard guides initial store completion. Real-time shipping service with USPS, FEDEX, DHL, and UPS free for a year, and over 13 different ways to ship, browser-based order management and browser-based product/catalog management. Contains advanced features like auction pricing, flexible payload delivery, unlimited product options, discounting, product expirations, product and order coupons and discounting, buy x-get y, LivePerson, real-time currency calculation and more. Free 30 day guarantee.