I'm trying to expose a C# class library via COM so that I can use it in a classic asp web site.

I've used sn - k, regasm and gacutil. About all I can do now though is echo back strings.

Methods which take Class variables as input are not working for me. ie my test method EchoPerson(Person p) which returns a string of the first and last name doesn't work. I get a runtime error 5 - Invalid procedure call or argument.

Please let me know what I am missing. Also I have no intellisence in VB. What do I need to do to get the intellisence working.

Below is my C# test code

namespace MrdcToFastCom
{

    public class Person : MrdcToFastCom.IPerson
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
    }


    public class ComTester : MrdcToFastCom.IComTester
    {
        public string EchoString(string s)
        {
            return ("Echo: " + s);
        }

        public string Hello()
        {
            return "Hello";
        }


        public string EchoPerson(ref Person p)
        {
            return string.Format("{0} {1}", p.FirstName, p.LastName);
        }

    }

}

and VB6 call

Private Sub btnClickMe_Click() 

    Dim ct
    Set ct = New MrdcToFastCom.ComTester

    Dim p
    Set p = New MrdcToFastCom.Person
    p.FirstName = "Joe"
    p.LastName = "Test"

    Dim s
    s = ct.EchoPerson(p) 'Error on this line
    tbx1.Text = s


End Sub