In the following example we will use ASP.NET to create a simple Web Service that converts the temperature from Fahrenheit to Celsius, and vice versa:
<%@ WebService Language="VBScript" class="TempConvert" %>
Imports System
Imports System.Web.Services
Public Class TempConvert :Inherits WebService
<WebMethod()> Public Function FahrenheitToCelsius (ByVal Fahrenheit As String) As String
 dim fahr
 fahr=trim(replace(Fahrenheit,",","."))
 if fahr="" or IsNumeric(fahr)=false then return "Error"
 return ((((fahr) - 32) / 9) * 5)
end function
<WebMethod()> Public Function CelsiusToFahrenheit (ByVal Celsius As String) As String
dim cel
 cel=trim(replace(Celsius,",","."))
 if cel="" or IsNumeric(cel)=false then return "Error"
 return ((((cel) * 9) / 5) + 32)
end function
end classThis document is saved as an .asmx file. This is the ASP.NET file extension for XML Web Services.
