We currently do not build WorldWind.NET unless you ask us to. Instead we bundle the build as a code generator application. Why did we make this choice?
We generate the full set of WorldWind API types for the purpose of evaluation and quick prototyping. We highly recommend though that you build an integration assembly from a more minimal set of proxy types.
On the one hand, having all the types available is great in that you never have to worry whether a specific Java type is available via its corresponding .NET proxy type.
On the other hand, the full set of proxy types creates an unnecessarily large assembly and can slow down several operations that depend on the number of available types. If you care about performance and size, keep it minimal.
To "download WorldWind.NET," you need to either: