How to run Indesign CS3 as a Service with Port number

Hello all,

I would like to run the InDesign CS3 Server as a service on Windows. It seems that after installing the Server it automatically installs as a service. But where can I assign the port number. If under Services properties of InDesign Server under Parameters I mention -port 1050 on Ok button it removes the parameter information.

I am doing right or is there some other way to start the Server as Service with Port number.

Thank you all in advance.

Regards
Farzana.