On Fri, Dec 19, 2008 at 1:58 PM, Christian Franke wrote: > (fhandler_registry::fill_filebuf): Use larger buffer to speed up > access to HKEY_PERFORMANCE_DATA values. Remove check for possible > subkey. Add RegCloseKey (). + /* RegQueryValueEx () opens HKEY_PERFORMANCE_DATA. */ + RegCloseKey (handle); I'm slightly puzzled by this change. handle is usually closed in fhandler_register::close. If you close it here then won't CloseHandle be called with an invalid handle in that method? Chris