> Hi,
>
> I am trying to load an assembly at runtime (plugin). Having the object
> (as Object), I like to
> cast it to the interface. The interface is defined as follows:
>
> Public Interface IVoimDescriptor
>     Function getVendorName() As String
>     Function getVoimDescription() As String
> '...
> End Interface
>
> The class, I get, is defined as follows:
>
> Public Class VoimDescriptor
>     Implements IVoimDescriptor
>
>     Public Function getVendorName(ByVal i As Integer) As String
> Implements IVoimDescriptor.getVendorName
>
>     End Function
>
>     Public Function getVoimDescription() As String Implements
> IVoimDescriptor.getVoimDescription
>
>     End Function
> End Class
>
>
> Trying to cast the object to IVoimDescriptor fails with
> InvalidCastException.
>
> Why, and how could I do this ?
>
> The Plugin implements classes based on interfaces and only the
> interfaces are public.
>
> Thanks, Lothar
>
>             assem = assem.LoadFrom(cbPlugins.SelectedItem)
>             Dim o As Object =
> assem.CreateInstance("SampleVoim.VoimDescriptor")
>
>
>             Dim descriptor As IVoimDescriptor = DirectCast(o,
> IVoimDescriptor) ' <<<<<<<<<
>
>             txtDesc.Text = descriptor.getVoimDescription()