Int 21 Fn 5704 - Dos 4.x Only - Set Extended Attributes [D]
AX = 5704h
BX = file handle
ES:DI -> EAV list (see #1356)
Return: CF clear if successful
CF set on error
AX = error code (see #1366)
Note: the default DOS 4 behavior is to do nothing and return successfully;
this functionality was apparently never released to the public
See Also: AX=5702h,AX=5703h,INT 2F/AX=112Dh