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I am getting the following error message reported by Excel 2003.

Run-time error '-2147024894 (80070002)';

File or assembly name ZZZ, or one of its dependencies, was not found.

Here is the VBScript in Excel:
Private Sub Workbook_Open()
  Dim mgr As Object
  Range("C2").Value = ""
  Range("C3").Value = ""
  Range("C4").Value = ""
  Range("C5").Value = ""
  Set mgr = CreateObject("ZZZ.X")
  If Not mgr Is Nothing Then
    Dim conn As String
    conn = mgr.GetConnectionStrWithRole("...")
    If Len(conn) > 0 Then
      Range("C2").Value = mgr...
      Range("C3").Value = mgr...
      Range("C4").Value = mgr...
      Range("C5").Value = conn
    End If
    Set mgr = Nothing
  End If
End Sub

If I put the following code in test.vbs it works:
Sub Test()
  Set mgr = CreateObject("ZZZ.X")
End Sub

call Test

If I put the following code in a 2.0 .Net Console App it works:
Module Module1

  Sub Main()
    Dim u As Object
      u = CreateObject("ZZZ.X")
      Console.WriteLine("A......: {0}", u.....)
      Console.WriteLine("B......: {0}", u.....)
    Catch ex As Exception
      Console.WriteLine("EXCEPT.......: {0}", ex.Message)
    End Try
  End Sub

End Module

The ZZZ.X is a 2.0 .Net ServiceComponent

X.cs as follows

namespace ZZZ
  public sealed class X : System.EnterpriseServices.ServicedComponent
    public X()
    // ... public methods and properties

assembly.cs contains

[assembly: ComVisible(false)]
[assembly: ApplicationActivation(ActivationOption.Library)]
[assembly: ApplicationName("ZZZ")]

The registry contains the ZZZ.X and CLSID information. Anyone have any ideas why the Excel 2003 vbscript isn't able to create the COM object?

1 solution

Try this I compiled a windows form into a class file by switching the compiler option to produce a Dll, then assigned these attributes to the class, registers the class as a COM interop and finally, I referenced the dll in the VB script editor under tools reference. It seems to work. The implementation here is just code so ignore it.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Tungsten
	public partial class Isotope : Form
		public DateTime current;
		public string timeRep;
		public string GetDateTime()
			timeRep = current.ToString();
			return current.ToString();
		public string TheTime
				timeRep = current.ToString();
				return GetDateTime();
		public Isotope()

		private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
			current = dateTimePicker1.Value;

/*  excel VB code HERE
Private Sub Workbook_Open()
Dim x As Tungsten.Isotope
Dim a As String

Set x = CreateObject("Tungsten.Isotope")

a = x.TheTime
a = x.GetDateTime()
a = x.timeRep

End Sub

Putz2008 9-Jun-10 11:53am
The [assembly: ComVisible(false)] is according to Microsoft documentation, however, on the off chance that there was a problem with the documentation, I also tried this with [assembly: ComVisible(true)] and it fails as well.
icestatue 10-Jun-10 11:32am
I have reposted a sample of code that worked for me if you are interested.

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