' Die DLL
' Namespace: MyDll
 
Imports System.Windows.Forms
 
Public Class [MyClass]
  Public Sub ShowMessage(Text As String)
    Messagebox.Show(Text)
  End Sub
End Class

' Hauptanwendung
Dim A As [Assembly] = [Assembly].LoadFrom(Application.StartupPath & _
  "\Plugins\Plugins.dll")
Dim oMyClass As Object = A.CreateInstance("MyDll.MyClass")
 
' mit Option Strict On
oMyClass.GetType.GetMethod("ShowMessage").Invoke(oMyClass, New Object() _
  {"Test"})
 
' mit Option Strict Off
oMyClass.ShowMessage("Test")

Dim A As [Assembly] = [Assembly].GetExecutingAssembly()
Dim S As Stream = A.GetManifestResourceStream("Namespace.Dateiname")