I have solved the problem with the help of my friend ...

There were two mistakes:

1. It must be set to LOW the level of PROTECTION of the IIS in which there is the webserver intranet

2. it was a bad path of taskkill; under, there is the correct path:

<%@ Language=VBScript %>
<%
Option Explicit
Dim shell
Set shell = Server.CreateObject("WScript.Shell")
shell.Run "c:\windows\system32\taskkill /IM calc.exe" <-- OK !!
Set shell = Nothing
%>