Access VB Managed DLL from un-managed Code of VC

Hi
I have a managed DLL (class library) made in VB .NET 2003. I have to use the
DLL in VC .NET 2003. My VC code is un-managed.

How can I make the above work???

I created a simple windows console application to test my dll.

In my VC project, I created an object of the class in VB DLL, it gives me
ERROR that the

1. object can't be destroyed...
2. 'VBClassLibrary::TestClass' : illegal use of managed type
'VBClassLibrary::TestClass'; did you forget a '*'?

I am not concerned about manage/un-managed code..

=MY DLL
Code======================================================================

Public Class TestClass

' Define a local variable to store the property value.

Private allowSum As Boolean

' Define Add function which adds two double values and retunes the

' sum of two

Public Function Add(ByVal val1 As Double, ByVal val2 As Double) As Double

If allowSum = True Then

' Return the sum of two input values

Return val1 + val2

Else

Return 0

End If

End Function

' Define AllowAddition property

Public Property AllowAddition() As String

Get

Return allowSum

End Get

Set(ByVal Value As String)

allowSum = Value

End Set

End Property

Protected Overrides Sub Finalize()

End Sub

End Class

==================================================================================

==My VC code===(its an console
Project)====================================================
#include "stdafx.h"

#using <mscorlib.dll>

int _tmain()

{

VBClassLibrary::TestClass ads;

return 0;

}

==================================================================================
moreove you can access my whole code at http://www.ashutosh.info/code.zip

Regards,
Ashutosh