I have the below source code:
<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
<Policy("ServicePolicy")> _  '(or <Policy(GetType(UsernamePolicy))> _ )
Public Class Service
   Inherits System.Web.Services.WebService
   <WebMethod()> _
   Public Function test1() As String
       Return "Test1 Function Called"
   End Function

   <WebMethod()> _
   Public Function test2() As String
       Return "Test2 Function Called"
   End Function
End Class 'Service

Now I want to do 2 things:

1. The policy will be only applied for test1 Function, not Function test2()
(  some things like that:
<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Public Class Service
   Inherits System.Web.Services.WebService
'The policy will be applied for test1 function
  <Policy("ServicePolicy")> _
  <WebMethod()> _
   Public Function test1() As String
       Return "Test1 Function Called"
   End Function
'and the policy will not be applied for test2 function
  <WebMethod()> _
   Public Function test2() As String
       Return "Test2 Function Called"
   End Function
)

2. By using an application the Admin can configure what policy will apply on
the web service without rebuild (recompile) the web service.
( The service is deployed on IIS server, and then the admin will use another
application to configure that web service)