All you need is an installed TCP/IP Stack to run this software.
Usually computers are connected to a LAN, but using the Dial Up adapter you can simulate such a connection as well.

Steps to check whether your installation is ready to run this software:
 

· Use the id.exe example in the installation directory to determine the name of your machine and the current logged in user.
· Call ping hostname to determine whether your TCP /IP stack is responding

You can now test the loopback functionality by adding yourself and the hostnames IP address to the trustbase.

Example:
· id.exe has indicated that you are administrator on host chacha.
· ping chacha has revealed that your IP address is 123.44.3.23.

now call:
configure -add administrator administrator 123.44.3.23

then you can open / use a MS Dos prompt and issue the command:

rsh chacha c:\progra~1\wrshd\id.exe

(maybe you have to replace wrshd by the installation directory you have chosen during installation)