Ich habe WindowsXP.
Die IO.DLL habe ich von dieser Seite:
http://www.geekhideout.com/iodll.shtml
Mfg,
ShadowPhoenix

Und hier die FunktionsPrototypen der DLL:

Private Declare Sub PortOut Lib "IO.DLL" (ByVal Port As Integer, ByVal Data As Byte)
Private Declare Sub PortWordOut Lib "IO.DLL" (ByVal Port As Integer, ByVal Data As Integer)
Private Declare Sub PortDWordOut Lib "IO.DLL" (ByVal Port As Integer, ByVal Data As Long)
Private Declare Function PortIn Lib "IO.DLL" (ByVal Port As Integer) As Byte
Private Declare Function PortWordIn Lib "IO.DLL" (ByVal Port As Integer) As Integer
Private Declare Function PortDWordIn Lib "IO.DLL" (ByVal Port As Integer) As Long
Private Declare Sub SetPortBit Lib "IO.DLL" (ByVal Port As Integer, ByVal Bit As Byte)
Private Declare Sub ClrPortBit Lib "IO.DLL" (ByVal Port As Integer, ByVal Bit As Byte)
Private Declare Sub NotPortBit Lib "IO.DLL" (ByVal Port As Integer, ByVal Bit As Byte)
Private Declare Function GetPortBit Lib "IO.DLL" (ByVal Port As Integer, ByVal Bit As Byte) As Boolean
Private Declare Function RightPortShift Lib "IO.DLL" (ByVal Port As Integer, ByVal Val As Boolean) As Boolean
Private Declare Function LeftPortShift Lib "IO.DLL" (ByVal Port As Integer, ByVal Val As Boolean) As Boolean
Private Declare Function IsDriverInstalled Lib "IO.DLL" As Boolean