i want to create a setup kit for a product giv me som ida how t o start with

pesently we r intsaling our product individually every module.i want to automate the process and build a program which can be installed automatically in to the system.
give me some idea of the program structure and example source code links if avalable argent .

For advanced installer you can use the open source installers.

Inno Setup using ANT

IzPack

Some simpler ones

Stream Setup

Spoon Installer

I think this should be suffice.