Imports System.ComponentModel.Design  'vorher Verweis auf System.Design setzen!
Public Class Form1
    Dim Viewer As New ByteViewer
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Load
        Me.Size = New Size(650, 700)
        Me.Controls.Add(Viewer)
        Viewer.Dock = DockStyle.Fill
        Viewer.SetFile("Deine Datei")
    End Sub
End Class