I am looking for a light-web embeddable web server for .NET.
I need it to fake a SOAP web-service for automated testing, so it is a big plus if it supports ASP.NET web-services or another easy way to create SOAP web-services. Extra bonus points for quick startup and shutdown and multiple simultaneous instances on different ports.
A Google search turns up aspnetserve, www-Sharp.Runtime and Neokernel Web Server. Do anyone have any experience with those or other solutions?
You can try the Cassini Web Server.
Edit
And now 6 1/2 years later, I'd recommend IIS Express instead.