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214403

Category: DOS kernel
Flags: Undocumented function

INT 21 - MS-DOS 7.0+ - CONFIG$ device - SET??? CONFIGURATION INFORMATION

	AX = 4403h
	BX = file handle for character device "CONFIG$"
	CX = number of bytes to write
	DS:DX -> buffer containing ???
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)
Note:	IOCTL Output to CONFIG$ is only available while IO.SYS is booting
	  the system; once CONFIG.SYS has been processed, this call always
	  succeeds, ignoring any input
SeeAlso: AX=4403h"CONFIG$"

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  Copyright 2000   by Ralf Brown     Updated Jul 2000