Godaddy share hosting doesn't support CSK 2 ?
CSK 2.0 , Commerce Starter Kit ---
The PayPal-enabled Commerce Starter Kit is a free, open source e-commerce storefront written in C# specifically for ASP.NET 2.0. It features out-of-the-box product catalog and shopping cart functionality that allows web developers to setup, run, and maintain an online store with little or no costs, license fees, or limitations. Some assembly required.
http://pdn.paypal.com/commercestarterkit/default.htm
It is a good open source e-commercial package for those people want to open their online stores.
But, there is a very important problem: Does your hosing support CSK 2.0?
check here: http://forums.commercestarterkit.org/
How To Push Your Site Live
If you need some help putting the CSK on your web host's server, here's a walkthrough. It's important to note that the CSK only works in Full Trust. Most ISPs will only allow .NET 2.0 Web sites to run in Partial Trust (aka Medium Trust). This won't allow the CSK to make Web Service calls to PayPal (or the gateway of your choice) so please make sure you ask your ISP if they will support full trust.
I heard Godaddy.com's share hosting maybe don't have something that CSK needs: GoDaddy locks down all sites under medium trust which does not allow the PayPal API to execute, thus disabling the site (http://forums.commercestarterkit.org/forums/1/207/ShowThread.aspx ), but you also see the information seems Godaddy and MS are doing sth. to resolve this problem.
Just now I have send my question about this to Godaddy's support team. We just see what they will reply to me.
Result: Godaddy response their share hosting only medium trust just like most of ISP.
Finally, I found info that maybe CSK 2.0 can use Medium Trust hosting for Paypal standard edition not paypal pro, that means if you don't set Paypal pro payment method just Paypal standard, it can work well.
http://forums.commercestarterkit.org/forums/thread/9010.aspx