VB.Net/Network Remote/Remote asynchronus

Call remote method: asynchronus call

///////////////////////////////////general.vb
// Compile: vbc /target:library  general.vb
Imports System
Imports System.Runtime.Remoting.Messaging
Public MustInherit Class BaseRemoteObject
    Inherits MarshalByRefObject
    Public MustOverride Sub setValue(ByVal newval As Integer)
    Public MustOverride Function getValue() As Integer
End Class

///////////////////////////////////test.vb
// Compile: vbc /t:exe /r:general.dll test.vb
Imports System
Imports System.Runtime.Remoting
Imports System.Runtime.Remoting.Channels.Http
Imports System.Runtime.Remoting.Channels
Imports System.Runtime.Remoting.Proxies
Module Client
    Delegate Sub SetValueDelegate(ByVal value As Integer)
    Sub Main()
        Dim start As DateTime = System.DateTime.Now
        Dim channel As New HttpChannel()
        ChannelServices.RegisterChannel(channel,false)
        Dim obj As BaseRemoteObject = CType(Activator.GetObject( _
            GetType(BaseRemoteObject), _
            "http://localhost:1234/MyRemoteObject.soap"), BaseRemoteObject)

        Dim svDelegate As New SetValueDelegate(AddressOf obj.setValue)
        Dim svAsyncres As IAsyncResult = svDelegate.BeginInvoke(42, Nothing, _
            Nothing)
        svDelegate.EndInvoke(svAsyncres)
        Dim tmp As Integer = obj.getValue()
        Console.WriteLine(tmp)
        Dim finished As DateTime = System.DateTime.Now
        Dim duration As TimeSpan = finished.Subtract(start)

        
    End Sub
End Module

///////////////////////////////////server.vb
// vbc /target:exe  /r:general.dll server.vb
Imports System
Imports System.Runtime.Remoting
Imports System.Runtime.Remoting.Channels.Http
Imports System.Runtime.Remoting.Channels
Imports System.Threading

Class MyRemoteObject
    Inherits BaseRemoteObject
    Private myvalue As Integer
    Public Sub New()
    End Sub
    Public Overrides Sub setValue(ByVal newval As Integer)
        Console.WriteLine("old {0} new {1}", myvalue, newval)
        Thread.Sleep(5000)
        myvalue = newval
    End Sub

    Public Overrides Function getValue() As Integer
        Return myvalue
    End Function
End Class
Module ServerStartup
    Sub Main()
        Dim chnl As New HttpChannel(1234)
        ChannelServices.RegisterChannel(chnl,false)
        RemotingConfiguration.RegisterWellKnownServiceType( _
            GetType(MyRemoteObject), "MyRemoteObject.soap", _
            WellKnownObjectMode.Singleton)
        Console.ReadLine()
    End Sub
End Module