Developed by Microsoft, which concerns providing a user with a graphical interface to another computer. By default the server listens on TCP port 3389.

Switch to connect to server console via RDP.

on RDP Client v5, use mstsc /Console
on RDP Client v6, use mstsc /admin

Here is the screenshot showing the difference between RDP Client v5 & v6

This is RDP Client v5

This is RDP Client v6