Is there a quality, scalable, .net ecommerce software package - open source or for purchase?

Question

It would be awesome to say we'd use the same software as amazon, barnesandnoble, buy.com, etc, but they are all built custom (as far as I know).

I'm looking for a software package with the following primary attributes:

• Scalable to the tune of millions of unique visitors per month
• Localizable including double-byte languages
• Accepts multiple currencies
• Has a content management component for both the product catalog and site text/imagery
• Can host multiple domains (I prefer to avoid multiple installations, but instead, use configuration to vary catalogs, etc)
• Marketing features such as coupons and discounts
• Built with .Net and will provide source code for modification (2.0 or 3.5)

Are you aware of anything either open source or available for purchase which matches these criteria? Please provide links if you have any. I recognize the requirements are expansive and that you almost always get what you pay for. Don't hold back if you know of some good stuff!

Thanks in advance for any help you might have!

Ian

Answer 1

I doubt that there is such a thing, but here are two good open source starting points: 1. http://dashcommerce.org/dashCommerce/featuresmatrix.aspx 2. http://blog.wekeroad.com/mvc-storefront/

1 is mature; 2 is nearly finished.

Answer 2

Well for purchase there's always MS Commerce Server. It's very definitely not free, and it's a bit of a monster for what it does, but we use it at work for websites of that scale.

Alternatively you could give Dash Commerce as try, which is free and mature, and would probably scale. Dash Commerce seems to have disappeared from the internet (December 2009) leaving no trace.

Probably nopCommerce is the next most active and feature rich ASP.Net webforms equivalent.

Edit: I knew there were a few more! (Been trawling my bookmarks/delicious) OS Commerce looks pretty mature and well used:

Answer 3

I would highly recommend Commerce Server 2007 or 2009 if you can wait a month or 2 until its official release. It does everything you have listed and more; however as others have said, it does come with a price, and it can definitely be a monster.

Having said that, from your question it seems that is exactly what you are looking for.

Shameless plug: Our company specializes on Commerce Server; feel free to contact me and ask any questions you might have.