nopCommerce is an open source shopping cart software that is built with ASP.NET & uses MSSQL for storing the data.
It comes with a powerful backend & highly customizable frontend.
nopCommerce has all the features of a standard e-commerce websites & offers more like:
- support for kit products (e.g. build your own computer)
- real-time currency exchange rates
- multilingual interface
- compare selected products
- highly flexible shipping calculation (integrated providers, width/height/order total based & more)
- tax calculations by country/state/product & more
- built-in forum & polls