title: Call a subroutine in a batch from another batch file
body: <p>file1.bat:</p>
  
  <pre><code>@echo off
   :Test
  echo in file one
  call file2.bat (Here i want to call only Demo routine in the file2.bat)
  </code></pre>
  
  <p>file2.bat:</p>
  
  <pre><code>:hello
  echo in hello
  :Demo
   echo in Demo
  </code></pre>
  
  <p>From the batch file1 I want to make a call to a sub routine in the batch file2.<br>
  I tried for example <code>call file2.bat:Demo</code> but it didn't give the correct result.</p>
  
  <p>How I can achieve this?</p>