title: install4j uninstaller does not delete all files
body: <p>i am generating an installer for a desktop application using install4j 4.0.5 compiled by
  j2re1.4.2_08 and running on WindowsXP.The Problem is that The uninstaller does not delete any files unless the files that have been installed by a previous installer.
  Example : It install my application into program files folder lets say 
  "Vodafone". My application further creates some files and folder into "vodafone"
  folder. At the time of uninstall it delete every thing whatever create 
  by setup while files and folder created by my application remains 
  there in "vodafone" even after restart my machine several time so i need to delete all files inside the installation folder .
  I need your support to know how to fix this problem and if there is any workaround i can do to solve this issue.</p>