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The problem with that example is that is does not register the control, and theexample will only work for putting it in a web page.

I did get this to work. The .Net user control can be hosted in VB6, VBA web forms, but not, I found, all ActiveX containers. Here are the details for those interested in what I did.

1. Create a VB.NEt user control (VB 2005)2. Put a button on the control3. Set project property "Register for COM interop"4. Modify the usercontrol1.vb as show belowBUILD VB.Net user control which will register the ActiveX control5. In VB6, add control (assembly namespace.MyControl")

Imports System.Runtime.InteropServicesImports System.TextImports System.IOImports System.ReflectionImports Microsoft.Win32Imports SystemImports System.ThreadingImports System.Math

_Public Class MyControl ' MAKE SURE WE HAVE 1 PUBLIC SUB in this class

#Region "COM GUIDs" ' These GUIDs provide the COM identity for this class ' and its COM interfaces. If you change them, existing ' clients will no longer be able to access the class. 'You should create your own 3 GUIDS using GuidGen Public Const ClassId As String = "8D6CC4E9-1AE1-4909-94AF-8A4CDC10C466"

Public Const InterfaceId As String = "D901FC53-EEC2-4634-A1B5-BB4E41B24521" Public Const EventsId As String = "7458968F-F760-4f53-A2E4-30C1D8CD691B"#End Region

#Region "REQUIRED FOR ACTIVEX" ' This function is called when registered (no need to change it) _ Private Shared Sub ComRegister(ByVal t As Type) Dim keyName As String = "CLSID\\" & t.GUID.ToString("B") Dim key As RegistryKey = Registry.ClassesRoot.OpenSubKey(keyName, True)

key.CreateSubKey("Control").Close() Dim subkey As RegistryKey = key.CreateSubKey("MiscStatus")

subkey.SetValue("", "131201") subkey = key.CreateSubKey("TypeLib") Dim libid As Guid = Marshal.GetTypeLibGuidForAssembly(t.Assembly) subkey.SetValue("", libid.ToString("B")) subkey = key.CreateSubKey("Version") Dim ver As Version = t.Assembly.GetName().Version Dim version As String = String.Format("{0}.{1}", ver.Major, ver.Minor) If version = "0.0" Then version = "1.0" subkey.SetValue("", version)

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End Sub

' This is called when unregistering (no need to change it) _ Private Shared Sub ComUnregister(ByVal t As Type) ' Delete entire CLSID{clsid} subtree Dim keyName As String = "CLSID\\" & _ t.GUID.ToString("B") Registry.ClassesRoot.DeleteSubKeyTree(keyName) End Sub

#End Region Private Sub UserControl1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

End Sub

Public Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click MessageBox.Show("OK") End SubEnd Class