If you have one of these older applications (and they??™re quite rare), you can
help the DOS application execute properly by adding the NTCMDPROMPT entry to Config.NT. This
entry tells the operating system to disallow Windows application execution at the command prompt,
which means that the DOS application continues to feel that it owns the machine. Of course, you
can start your Windows applications from another command prompt or by using any of the usual
techniques, such as the Start menu.
Displaying the Config.NT Commands
Normally, you won??™t see any information about the commands that execute before the command
window opens; all you see is a command prompt. Adding an ECHOCONFIG to the Config.NT file displays
each of the commands as they execute. Using this feature can help you diagnose problems
with the Config.NT file contents.
Controlling the Expanded Memory EMM Entry
Older applications, especially character mode (DOS) games, rely on the Expanded Memory
Specification (EMS) memory to overcome command prompt memory limitations. It??™s important to
remember that the command line effectively limits the amount of memory available to DOS applications
to 640 KB minus any memory that the operating system uses.
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