Open source C# ecommerce/shopping cart?

[hx009]

Any of you know of a decent open source .Net based shopping cart system? I've been looking around and haven't found anything in .Net with the popularity of osCommerce or ZenCart. I tried DashCommerce 3.x and just found it to be too klunky and buggy. Are there any others out there, or am I pretty much going to have to write it myself (or pay for it)?