Given a network, the user can generate a script for the ns network simulator by using Generate NS Script command from the Computation menu.

In the dialog box that appears, the user should specify the output script file, identify the queues to be traced by ns, and choose whether or not the script is to be automaticlly run by ns.

When ns runs, it dumps the results in a number of files in the document's directory. These files are then accessed by the graphics module when displaying plots.

To do this, ns should be properly installed and its directory should be in the executable's path. To download ns for Windows NT, please refer to http://www-mash.cs.berkeley.edu/ns/ and get the ns version for Windows  (ns-2.1b4 binary release as of March 22, 1999).