I need an automatic UPnP port forwarding or single port forwarding software/tool for Windows. i want to do the port forwarding automatically the way that i choose a port like 4545 on the software/tool and it should open that port for the computer's IP when it connects to the Internet.
I need to install the software/tool on a Laptop for someone who doesn't know port forwarding and connects to the Internet in multiple places with routers that some of them may be public so can't change the routers's settings. i need to have access to some apps in order to do work or assist him remotely like Real VNC. I've tried programs like this or Portmapper, unfortunately none of them are automatic.