activeX i .net

jeg forsøger med denne kode:

Namespace ActiveXDotNet
    Public Interface AxMYControl
        Property UserText() As String
    End Interface

    Public Class test
        'arver fra forms.usercontrol
        Inherits System.Windows.Forms.UserControl

        'vi implementerer axmycontrol, da der ikke kan arves fra et interface
        Implements AxMYControl

        Private mStr_UserText As String

#Region " Windows Form Designer generated code "

        Public Sub New()
            MyBase.New()

            'This call is required by the Windows Form Designer.
            InitializeComponent()

            'Add any initialization after the InitializeComponent() call

        End Sub

        'UserControl overrides dispose to clean up the component list.
        Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
            If disposing Then
                If Not (components Is Nothing) Then
                    components.Dispose()
                End If
            End If
            MyBase.Dispose(disposing)
        End Sub

        'Required by the Windows Form Designer
        Private components As System.ComponentModel.IContainer

        'NOTE: The following procedure is required by the Windows Form Designer
        'It can be modified using the Windows Form Designer. 
        'Do not modify it using the code editor.
        Friend WithEvents txtUsertext As System.Windows.Forms.TextBox
        <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
            Me.txtUsertext = New System.Windows.Forms.TextBox()
            Me.SuspendLayout()
            '
            'txtUsertext
            '
            Me.txtUsertext.Location = New System.Drawing.Point(8, 64)
            Me.txtUsertext.Name = "txtUsertext"
            Me.txtUsertext.Size = New System.Drawing.Size(184, 20)
            Me.txtUsertext.TabIndex = 0
            Me.txtUsertext.Text = "TextBox1"
            '
            'test
            '
            Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.txtUsertext})
            Me.Name = "test"
            Me.Size = New System.Drawing.Size(240, 150)
            Me.ResumeLayout(False)

        End Sub

#End Region

        Public Property UserText() As String Implements AxMYControl.UserText
            Get
                Return mStr_UserText
            End Get
            Set(ByVal Value As String)
                mStr_UserText = Value
                'txtusertext.Text = Value
            End Set
        End Property

    End Class
End Namespace

nogle ideer?

luk og sluk