In the last post I was implemented the USB detection, but the problem become more complex, because my USB stick contains some Autorun.inf file and when you plug the stick, it start executing some program, otherwise you need to cancel it explicity. The client need to avoid this. So I have to find some solution, where, I need to disable the autorun, when my program is running. Luckly, on the first search in google only, I got the solution.

Here is the implementation.

'API
Public QueryCancelAutoPlay As Integer = 0
Public Shared Function RegisterWindowMessage(ByVal strMessage As String) As Integer
'No implementation required.
End Function

'Modified implementation of WndProc() method

Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If QueryCancelAutoPlay = 0 Then
QueryCancelAutoPlay = RegisterWindowMessage("QueryCancelAutoPlay")
End If

If m.Msg = WM_DEVICECHANGE Then
Select Case m.WParam
Case WM_DEVICECHANGE_WPPARAMS.DBT_DEVICEARRIVAL
lblMessage.Text = "USB Inserted"
Case WM_DEVICECHANGE_WPPARAMS.DBT_DEVICEREMOVECOMPLETE
lblMessage.Text = "USB Removed"
End Select
ElseIf m.Msg = QueryCancelAutoPlay Then
m.Result = CType(1, IntPtr)
Return
End If
MyBase.WndProc(m)
End Sub

I implemented it in C#, and I re-wrote it in VB.Net, and I didn’t tested it If you are facing any issues, let me know.