Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
Public Class Form1 Dim mHandler As TimerEventHandler Dim iCount As Long = 0 Dim mTimerId As Integer <DllImport("winmm.dll")> Private Shared Function timeSetEvent(delay As Integer, resolution As Integer, handler As TimerEventHandler, user As IntPtr, eventType As Integer) As Integer End Function <DllImport("winmm.dll")> Private Shared Function timeBeginPeriod(millisecond As Integer) As Integer End Function Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click timeBeginPeriod(1) mHandler = New TimerEventHandler(AddressOf TimerCallback) mTimerId = timeSetEvent(1, 0, mHandler, IntPtr.Zero, 1) End Sub Private Delegate Sub TimerEventHandler(id As Integer, msg As Integer, user As IntPtr, dw1 As Integer, dw2 As Integer) Private Sub TimerCallback(id As Integer, msg As Integer, user As IntPtr, dw1 As Integer, dw2 As Integer) iCount += 1 End Sub End Class
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