INT 7F - Alloy NTNX - ATTACH DEVICE FOR USER                                    
	AH = 81h
	AL = user ID
	DS:DX -> 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. device name
SeeAlso: AH=82h