INT 15 - VMiX - "sys_setbwindow" - SET BANNER WINDOW MESSAGE
	AH = 15h
	STACK:	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to ASCIZA NUL-terminated ASCII string.	The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h.  Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. banner message for top of screen
Return: AX = status (SYS_OK)
SeeAlso: AH=14h"VMiX",AH=16h"VMiX"
                                                                                

INT 15 - MultiDOS Plus - GET SYSTEM BLOCK                                       
	AH = 15h
Return: BX:AX -> system block (see #00457)
SeeAlso: AH=13h"MultiDOS"


Format of MultiDOS Plus 4.0 system block:
Offset	Size	Description	(Table 00457)
 00h	WORD	segment of system control block
 02h	WORD	redirection flag set by /NOREDIRECT
 04h	WORD	no-INT 10 flag set by /NO10
 06h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	old INT 10
 0Ah	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	new INT 10
 0Eh	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to WORD with current TCB offset (see #00456)
 12h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to WORD with idle task TCB offset
 16h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to WORD with foreground TCB offset (see #00456)
 1Ah	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to WORD with MultiDOS TCB offset (see #00456)
 1Eh	WORD	Task Control Block size
 20h	WORD	number of TCBs
 22h	WORD	flag: EMSsee Expanded Memory Specification present
 24h	WORD	EMSsee Expanded Memory Specification page frame base segment
 26h	WORD	16K pages in EMSsee Expanded Memory Specification page frame
 28h	WORD	base segment for conventional memory tasks
 2Ah	WORD	conventional memory size in paragraphs
 2Ch	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	pointer to list of queue pointers