How to "free" an IP address?

I have started to rent a Win2k3 server that comes with 2 static IP
addresses. Both IPs seems to be hard-coded in the TCP/IP configuration
(no DHCP being used). I would like to "free" of the IPs in order to be
able to assign the IP to a guest virtualized instance of Win2k3
(through Virtual Server 2005 R2).

Does anyone knows how to do that?

Thanks in advance,
Joannès
http://www.lokad.com sales forecasting

Found the solution. In case anybody would be interested, it's within
the "Advanced Settings" of the "TCP/IP" protocol configuration.

Joannès