The Ports tab displays a list of the current port service mappings, and lets you enable or disable UPnP port forwarding. To enable or disable UPnP port forwarding: Set UPnP port forwarding to ON to allow UPnP devices on your Fiber network to set their own port forwarding rules.
VRML (Virtual Reality Modeling Language) is a language for describing three-dimensional (3-D) image sequences and possible user interactions to go with them.
Cortona3D Viewer (previously known as Cortona VRML Client) works as a VRML plug-in for popular Internet browsers (Internet Explorer, Mozilla Firefox, Google Chrome, Opera) and office applications (Microsoft PowerPoint, Microsoft Word).