INT 17 - Alloy MW386 - DEFINE TEMPORARY FILENAME                                
	AH = A8h
	CX:SI -> 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. filename without extension (max 8 chars)
Return: AL = status (see #00642)
Note:	allows application to specify banner page filename for spool files
	  collected from the application's printer output
SeeAlso: AH=A9h