title: Bamboo variable replacement not working inside text/asp.net config files
body: <p>Slowly going crazy with this one, I am trying to inject Bamboo variables into a text file. I have tried many combinations, but to no avail, cannot seem to get my variable to be replaced during the Atlassian Bamboo build process. I'm running Bamboo on Windows.</p>
  
  <p>Any ideas? This is simply a .txt file that is sent along with my build artifacts.</p>
  
  <p>Whilst not ASP.NET specific, I would eventually like to replace some strings in my Web.config file.</p>
  
  <p>As you can see from the output of my vartest.txt file, no variable combinations are being replaced.</p>
  
  <pre><code>%bamboo.test.variable%
  %BAMBOO.test.variable%
  %BAMBOO.TEST.VARIABLE%
  %BAMBOO_TEST_VARIABLE%
  %bamboo_test_variable%
  ${bamboo.test.variable}
  %test_variable%
  %TEST_VARIABLE%
  %TEST.VARIABLE%
  </code></pre>
  
  <p>This is my setup (according to the documentation they should be accessible via %BAMBOO_TEST_VARIABLE%):
  <a href="https://i.stack.imgur.com/4meW2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4meW2.png" alt="enter image description here"></a></p>