Access .NET class library from Excel 97

[Pete Kane]

Hi All, does anyone know if it's possible to utilise a .NET class
library from Excel 97 ? I've tried but receive a runtime error
-2146232576 which means nothing to me, my class is shown below, I've
placed the assembly into the GAC and registered it using RegAsm all to
no avail

using System;
using System.Collecti ons.Generic;
using System.Text;
using System.IO;
using System.Runtime. InteropServices ;

namespace CallingCSharpFr omWord97
{

[ComVisible(true )]
public class PJKWordClass
{
public TextWriter tw = null;

public PJKWordClass()
{
}

public void WriteLogFile(st ring msg)
{
tw = new StreamWriter("c :\\PJKCalledFro mWord97.log", true);
tw.WriteLine(St ring.Format("Th is file was created by C# which was
called from a COM client {0} at
{1}",msg,DateTi me.Now.ToLongDa teString()));
tw.Close();
}

}
}
I can reference the assembly in Excel, but when run, it bombs on the
CreateObject line ( with the error number shown above )

Dim oCSharp As CallingCSharpFr omWord97.PJKWor dClass

Set oCSharp = CreateObject("C allingCSharpFro mWord97.PJKWord Class")

regards