Prevents starting applications other than MS-DOS-based applications from the COMMAND.COM prompt.
DOSONLY
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Normally, when you exit an MS-DOS-based application, Windows NT returns to the Windows NT command interpreter, CMD.EXE. However, by default, when you run a TSR or temporarily suspend an MS-DOS-based application to return to the command prompt, Windows NT runs COMMAND.COM, the command interpreter for the MS-DOS environment. 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 NT provides the DOSONLY command. The DOSONLY command allows only MS-DOS-based applications to be started from the COMMAND.COM prompt. You can include the DOSONLY command in your CONFIG.NT file or the equivalent custom startup file in an application PIF.
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