Source Code of Windows!

char make_prog_look_big[1600000];

main()
{
    if (detect_cache())
        disable_cache();

    if (fast_cpu())
        set_wait_states(lots);

    set_mouse(speed, very_slow);
    set_mouse(action, jumpy);
    set_mouse(reaction, sometimes);

    printf("Welcome to Windoze 3.999 (we might get it right \
        or just call it Chicargo)\n");

    if (system_ok())
        crash(to_dos_prompt);
    else
        system_memory = open("a:\swp0001.swp", O_CREATE);

    while(1) {
        sleep(5);
        get_user_input();
        sleep(5);
        act_on_user_input();
        sleep(5);
        if (rand() < 0.9)
            crash(complete_system);
    }
    return(unrecoverable_system);
}