This describes how to use your RPi as a remote terminal to a Windows machine. It assumes that the Widows machine has Remote Desktop installed and enabled.
Firstly, install the remote desktop package on you RPi:
sudo apt-get install rdesktop
Having installed the remote desktop on the RPi the remote machine is accessed by something such as the example below (linux). You can also use the remote desktop gui on windows.
rdesktop -x:l -r sound:remote hostname
hostname can be replaced by an IP address
For a list of option see
The example above indicates that the remote machine is on a LAN, i.e. -x:l gives maximum bandwidth and that the sound is to be left on the remote machine.