title: Inno Setup - Uninstall Registry Removal Option
body: <p>The program I'm building an installer for uses registry entries to store user settings. Right now I have it set to delete said registry files when the program is uninstalled, but I would like the ability to give users an option to either keep or delete the registry files upon uninstall.</p>
  
  <p>I'm not the best scripter/programmer, so the simpler the answer, the better.</p>
  
  <p>My registry/uninstall currently looks like this. </p>
  
  <pre><code>    [Registry]
      Root: HKCU; Subkey: "Software\FFSPLIT Overlay Filter"; Flags: uninsdeletekey
  
  
      [UninstallDelete]  
      Type: filesandordirs; Name: "{app}\ffmpeg"
      Type: filesandordirs; Name: "{app}\OverlayData"
      Type: files; Name: "{app}\AForge.Controls.dll"
      Type: files; Name: "{app}\AForge.Imaging.dll"
      Type: files; Name: "{app}\AForge.Video.DirectShow.dll"
      Type: files; Name: "{app}\AForge.Video.dll"
      Type: files; Name: "{app}\AudioFilter.ax"
      Type: files; Name: "{app}\default.cfg"
      Type: files; Name: "{app}\DirectShowLib-2005.dll"
      Type: files; Name: "{app}\ffmpeg.exe"
      Type: files; Name: "{app}\FFSplit Overlay Filter.ax"
      Type: files; Name: "{app}\FFsplit.exe"
      Type: files; Name: "{app}\FFSplitOverlayManager.exe"
      Type: files; Name: "{app}\librtmp.dll"
      Type: files; Name: "{app}\msvcp100d.dll"
      Type: files; Name: "{app}\msvcr100d.dll"
      Type: files; Name: "{app}\NAudio.dll"
      Type: files; Name: "{app}\RegisterFilter.bat"
      Type: files; Name: "{app}\setting.cfg"
      Type: files; Name: "{app}\UNRegisterFilter.bat"
      Type: files; Name: "{app}\wavbuffer"
      Type: files; Name: "{app}\Micfilter.ax"
  </code></pre>