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Dosonly

Prevents users from starting applications other than MS-DOS-based applications from the Command.com prompt.

Syntax

dosonly

Parameters

none

Remarks

  • When you exit an MS-DOS-based application, Windows XP returns to the command interpreter, Cmd.exe. When you run a terminate-and-stay-resident program (TSR) or temporarily suspend an MS-DOS-based application to return to the command prompt, Windows XP runs the command interpreter for the MS-DOS environment, Command.com. This preserves the MS-DOS environment, allowing you to use the TSR immediately.

    Because starting and running other types of applications from the Command.com prompt can disrupt a TSR or suspended MS-DOS-based application, Windows XP provides dosonly. With dosonly, you can start only MS-DOS-based applications from the Command.com prompt. You can include dosonly in your Config.nt file or the equivalent custom startup file in an application's program information file (PIF).

  • Config.nt is used to initialize the MS-DOS environment, unless you specify a different startup file in an application's PIF.

Examples

Include dosonly in your Config.nt file, or the Config startup file specified in the PIF. The following example shows how a Config.nt might look.

dos=high,umb
device=%systemroot%\system32\himem.sys
files=40
@echo off
dosonly

Command-line reference A-Z

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