One of my favorite geographic Information System (gis) web server is Sharpmap. It runs on dotnet 2.0 and using ASP.NET(C#) language. I like Sharmap, because it’s open source and free . The web server it self didn’t need any additional software/component to install. Just pure dotnetframework (v.2.0). So it can be easily deploy on common IIS web server equip with dotnetframeork.
Sadly, Morten which is the main developer of sharpmap had to decide not to involve on the project anymore, just when the project began to bloom. Morten working on ESRI California at the ADF Team now.

Free Download