DOS / Functions / 45

               INT 21 - DOS 2+ - CREATE DUPLICATE HANDLE (DUP)

Input	DOS1	N	DOS2	Y	DOS3	Y	DOS5	Y	Output
AX	45h				New Handle / Error Code				AX
BX	File Handle to Duplicate								BX
CX									CX
DX									DX
ES:DI					Set if Error				CF

See Also 46h 59h Error Codes