System.MethodAc cessException

[hjackman]

I am developing a COM library that exposes a single class Number and uses
the ComClass attribute. I have also added another project that I use to
debug the COM class. I recently added several events to the COM class which
are raised asynchronously. The following code will execute with no
problems; however, as soon as I add an event handler to the debug program, I
get the error:

An unhandled exception of type 'System.MethodA ccessException' occurred in
VB7Debug.exe
Additional information: AsyncBeginEvent Handler..ctor(S ystem.Object, IntPtr)
This code works without an event handler defined.

Private WithEvents num As NumberString.Nu mber

Private Sub Form1_Load(ByVa l sender As Object, ByVal e As System.EventArg s)
Handles MyBase.Load
Try
num = New NumberString.Nu mber
With PNum1
CallAMethod
End With
Catch ex As SystemException
Stop
Catch ex As Exception
Stop
End Try
End Sub

When this is added to the debug application, I get the above error.

Private Sub num_AsyncBegin( ByVal sender As Object, ByVal e As
System.EventArg s) Handles num.AsyncBegin
End Sub

The constructor of my COM class is actually being executed. Once the thread
returns from the constructor, the error is immediately raised.

Thanks in advance