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Sub Main will not be called at component startup

Visual Studio .NET 2003

In Visual Basic 6.0, any code in a Sub_Main procedure for a .dll or .ocx file would be run automatically on startup. In Visual Basic .NET, Sub_Main cannot be set as a startup object; any code in the Sub_Main procedure will not be run on startup.

What to do next

  • Add code to the constructor (Sub New) to call the Sub_Main procedure whenever an instance of the object is created:
    Public Sub New()
       Main()
    End Sub
    
  • Alternatively, move the code from the Sub_Main procedure to the Sub_New procedure.

See Also

What's New in Components and Component Authoring

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