> Whoa, there! If the operating system is not "secure" then there is no
> guarantee that any program running on that OS is functioning properly.
There's only one program running on the OS, and that's the firewall
> One last thing before the flames come in: if you are running a program
> on a DOS machine and that program is very well designed and written,
> then it is acting like a dedicated device rather than a computer and
> you can achieve a reasonable degree of security while that program
> is running.
That's exactly what it is. DOS is just a bootloader for a "firewall