What's the host used by nuget package "Microsoft ASP.NET Web API 2.1 OWIN Self Host 5.1.1"?

Question

What's the host/webserver that nuget package Microsoft ASP.NET Web API 2.1 OWIN Self Host 5.1.1 uses to host webapi 2.1?

(following the Host dependencies in this page it does lead to Katana server but I wanted to make sure)

Answer 1

It is OwinHttpListener that is a thin wrapper around HttpListener which in turn is a wrapper around Http.sys.