1. In a computer system, a computer implemented method for automatically installing a plurality of software products on said computer system and configuring said computer system's operating environment, said method comprising the steps of: a) booting said computer system, loading a first install control module for locating install media and starting installation from a boot device into said computer system's memory, and transferring control to said first install control module loaded into said memory; b) said first install control module locating an install media comprising a second install control module for setting up and controlling automatic installation, and giving execution control to said second install control module; c) said second control module locating a collection of installation files comprising a classification rules file and a plurality of install script files, said classification rules file having a plurality of classification rules for classifying a computer system, each of said install script file having a plurality of install commands for performing certain installation and/or configuration tasks; d) said second install control module determining at least one classification for said computer system using said located classification rules file; and e) said second install control module installing said plurality of software products on said computer system, and configuring said computer system's operating environment automatically by selectively executing said install script files based on the classification determined for said computer system, wherein said first install control module comprises an operating system with minimal functions, a plurality of initialization and related processes, a command-like language interpreter, a set of system reconfiguration files, and an install media locator and starter routine; said step a) comprises the steps of: a.1) booting said computer system, loading said operating system into said memory, and transferring control to said operating system loaded into said memory; a.2) said operating system loading said initialization and related processes and said command-like language interpreter into memory, and starting execution of said initialization and related processes: a.3) said operating system further loading said system reconfiguration files into said memory and starting execution of said system reconfiguration files using said command-like language interpreter; end a.4) said operating system further loading said install media locator and starter routine into said memory and starting execution of said install media locator and starter routine using said command-like language interpreter.