VNC Client & Server... Again

I really need a VNC/RDP server, as I cannot manage to make the one included in Win8.1/10TP to work... (and, apparently, some versions of Win8/Win8.1 simply do not include this feature!!!)

I've seen there has already been discussion in 2006 about providing a VNC (client?) in the PortablesApps platform. However, I can't find any such app when I search in my installation.

Here is a list of many fully OpenSource VNC Client/Servers for windows, that would perfectly fit PortableApps:
http://alternativeto.net/browse/search/?q=vnc%20server&license=opensourc...