title: Inno Setup Modify app.config file when you run setup.exe
body: <p>I have a WCF service which I am hosting as a Windows Service. I normally go to VS command prompt and install the service using installutil.exe, then modify the base address of the service in app.config according to the machine name that I am installing it on and run the service.</p>
  
  <p>base address goes like this:</p>
  
  <pre><code>&lt;endpoint address="http://MACHINE_NAME/NFCReader/" binding="webHttpBinding"/&gt;
  </code></pre>
  
  <p>I modify the MACHINE_NAME in the app.config file.</p>
  
  <p>I want to use inno setup to do the same for me.</p>
  
  <p>What I want is when the user run the setup.exe file to install the service, I want to prompt the user for base address of the service and use that address to host it. I am not able to figure out if it is possible at all OR how to do it.</p>
  
  <p>Any help please? Thanks in advance. :)</p>