Vista - Making Async Work

Hi all,
I am brand new to wcf. We have a collection of services that our
asp.net webparts interact with. The way we have made the services is to
have the service, host, and a setup in a solution. Install on a remote
server, and then use svcutil to create the proxy. I hope this is a good
way to accomplish this.

Now we are trying to makes these services behave asynchronously. Here
is what I have so far:

<ServiceContract()> _
Public Interface IAnnouncementService

<OperationContract(IsOneWay:=False, AsyncPattern:=True)> _
Function BeginGetCurrentAnnouncements(ByVal callback As
AsyncCallback, _
ByVal state As Object) As IAsyncResult
Function EndGetCurrentAnnouncements(ByVal result As IAsyncResult)
As DataSet

End Interface

Public Class AnnouncementService
Implements IAnnouncementService

Public Function BeginGetCurrentAnnouncements(ByVal callback As
System.AsyncCallback, _
ByVal state As Object) As System.IAsyncResult _
Implements
IAnnouncementService.BeginGetCurrentAnnouncements

' . . . not sure how much you need

End Sub

Public Function EndGetCurrentAnnouncements(ByVal result As
System.IAsyncResult) _
As System.Data.DataSet _
Implements
IAnnouncementService.EndGetCurrentAnnouncements

' . . . done with processing

End Function

When I start the service and run the utility, the
BeginGetCurrentAnnouncements was not included in the proxy. What am I
missing? I'm not even sure if I am going about this the right way,
the doc I have found are a little limited.

Any information would be helpful.

Thanks and have a nice day,
Ryan