Can't Run VNCsharp sample work

I have download开发者_StackOverflowed VNCsharp sample form here. I run the sample on my own machine and another instance of it on a remote machine then try to connect to remote host but it throws an exception as this:"No connection could be made, because the target machine actively refused it"

What kind of issues i probably not intended?

Download and set up a real vnc server properly and test the client code on that. I guess you missed something out in the server configuration so using a prepared server with .NET client will help you diagnose the problem. Also you can try enabling network tracing from app.config to see what was going on.