DOS / Interrupts / Int 2F / 12/21


               DOS INTERNAL SERVICES - Expand ASCIIZ Path Name

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	12h		21h		Error Code				AX
BX									BX
CX									CX
DS:SI	ASCIIZ Path Name for Expansion								DX
ES:DI	65 byte Destination Buffer				Set if Error				CF