title: NSIS Control progress bar on InstFiles
body: <p>Is there any way to control the progress bar that is shown on the InstFiles step of the installation?</p>
  
  <p>I have seen tutorials on how to make a progress bar on a custom dialog page, but not how to control the one on InstFiles.  </p>
  
  <p>I extract a lot of files and then run a few steps that take a long time, and the progress bar is sitting at around 90% for all of the steps at the end since there were so many files to extract.  I would like to have better control of it.</p>