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Suggested to add for cleaning XBMC cachefiles (it does it by itself most of the time, not all however) Also suggested to add cleaning of the packages directory, (storage location for all addons with all updates can get real big) [XBMC cache*] LangSecRef=3023 DetectFile=%AppData%\xbmc\cache FileKey1=%AppData%\Xbmc\cache|*.*|RECURSE [XBMC packages*] LangSecRef=3023 Default=False DetectFile=%AppData%\xbmc\addons\packages FileKey1=%AppData%\Xbmc\addons\packages|*.*|RECURSE

Yeah, the Config.msi are just that, saved opportunity to reconfigure installed apps without the install media. Should work fine thou if you run the installer from the original source again.

that error seem to only occur if you try to clean the temp files from Vista (SYSTEM -> Temporary Files), there are some files that are READONLY which I guess makes CCleaner die. Run Eraser to delete entries from windows tempdirs instead, it does the job.