<%@ WebService Language="VB" Class="Util" %> 

Imports System.Web.Services

Public Class Util
    Inherits WebService

    <WebMethod(Description := "Obtains the Computer Machine Name", _
        EnableSession := False)> _
    Public Function GetMachineName() As String

        Return Server.MachineName
    End Function
End Class

<%@ WebService Language="C#" Class="Util" %>

 using System.Web.Services;

 public class Util: WebService {
    [ WebMethod(Description="Obtains the Server Computer Name",EnableSession=false)]
    public string GetMachineName() {
       return Server.MachineName;
    }
 }