Hello Bob, Friday, February 13, 2004, 3:47:27 PM, you wrote:
BG> I can't speak authoritatively, but unless command.com was written to be BG> re-entrant (I'll let the programmers get into the details), no. Basically, BG> re-entrant code allows the same code (i.e. driver) to be called multiple times BG> while keeping variables separate. I may be wrong, but I think that this would not be a function of command.com (which is just one program running in an operating system)... but of the operating system itself. Windows 98, NT and Linux all permit multiple command prompts to run, all doing different things, at the same time. I'm not sure about earlier versions of DOS, though. Just now, for fun, working in Windows 98se, I opened a command prompt window, and entered the command 'command.com' which gave me the usual Microsoft header...then entered it again, and got the same header again. Then I typed 'exit', which kept me in the prompt window still, then 'exit' again... still in the prompt window, then 'exit' again, and the window closed, so I was running 3 nested prompts, in a single window. -wittig http://www.robertwittig.com/ -weblog http://radio.weblogs.com/0128450/ A business is as honest as its advertising. .
