title: Windows installer removing generated log files
body: <p>Hi I have windows installer that install my program and uninstall it.
  everything with installation goes fine but for uninstall part.
  My program is generating Log files in "program location\Log\" directory.
  I would like to add custom command to clear this folder before or after uninstallation so the uninstall process will completly remove the directory and does not leave mess in program files system.</p>
  
  <p>Any idea how to do this.
  Also i do not want to add additional file for this, if it is possible.</p>
  
  <p>thank you for your suggestions...</p>