I have tested around 10 webservers, I have found either
a) simple and lightweight servers but good for intranet tests only because not secure @ all
b) servers with Windows binary that can't run as service, or unstable
c) and then you have Apache of course
Hiawatha is to me the best compromise under Windows. 1-Lightweight, 2-Seems stable and can run as a service 3-Dev and Forum are active, Hugo is very helpful
Good job and thanks HUGO, I will run my site with Hiawatha!