I must disagree ... what DOS offers you is the an environment where you can build simple applications that are bullet proof in their simplicity. You don't have to have all that extra baggage just to get it to run. I have written applications that do their thing that run under DOS without a glitch for weeks on end that never make a DOS call beyond the initial load. They own the machine from startup to whenever. Granted if your code screws up you are screwed, but the chances of screwing up on some OS subtlety are minimal. I still keep a copy of MSC 5.1 and a DOS 6.22 on a bootable CDROM in case I have the need. On Nov 30, 2007, at 7:03 AM, Ariel Rocholl wrote: > What is the other problem? Reliability of the whole OS is determined > by the > reliability of the application you run. In other words, a simple > glitch and > the whole OS gets broken. So you need to develop really robust apps > to have > a stable DOS environment. -- cheers ... 73 de brian riley, n1bq , underhill center, vermont Tech Blog Home of the K107 Serial LCD Controller Kit FT817 Power Conditioner Kit Tab Robot Laser Tag Kit MSP430 Chips and Connectors Propeller Robot Controller SX48 "Tech Board" Kit PICAXE chips and accessories Freeduino systems -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist