Public Function BeginGetReplica( _
   ByVal ReplicaName As String, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As GeoDataServerProxy
Dim ReplicaName As String
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginGetReplica(ReplicaName, callback, asyncState)

public IAsyncResult BeginGetReplica( 
   string ReplicaName,
   AsyncCallback callback,
   object asyncState
)