CB One: DLL Interface or Connection

 Heres a Clean VB.Net code declaring the interface easily readable.

'dll interface or connection

    Public Declare Sub Out64 Lib "inpoutx64.dll" Alias "Out32" (ByVal PortAddress As Short, ByVal Value As Short)

    Public Declare Function Inp64 Lib "inpoutx64.dll" Alias "Inp32" (ByVal PortAddress As Short) As Short

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    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Out64(888, 1)

    End Sub

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    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

        Out64(888, 0) 'clear all

    End Sub

DOWNLOAD CODE HERE

 ENJOY!