Category: shells/command interpreters
Flags: Undocumented function

INT 2F - DOS 4.x only SHELLB.COM - COMMAND.COM interface

	AX = 1903h
	ES:DI -> ASCIZ batch file name as for AX=1902h
Return: AL = status
	    FFh quoted batch file name matches last SHELLB parameter
	    00h it does not