Instance manager parameters on Win NT

Hi, I would like to create an configuration script for Informix and create a server instance in this. My problem is that I couldn't find any information about the arguments of Instance Manager in Answer Online, except this: When the Instance Manager program is invoked without an argument, it displays a list of all database server instances that reside on the computer. Users can use buttons to create a new instance or delete one of the existing instances. Could someone help me? Thanks, Andor Rozsnyai