The SetupTerminateFileLog function releases resources associated with a file log.
BOOL SetupTerminateFileLog(
  HSPFILELOG FileLogHandle  // handle of the log file to close
);
 If the function succeeds, the return value is a non-zero value.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
  Windows NT:  Use version 4.0 and later.
  Windows:  Use Windows 95 and later.
  Windows CE:  Unsupported.
  Header: Declared in setupapi.h.
  Import Library: Link with setupapi.lib.
Overview, Functions, SetupLogFile, SetupInitializeFileLog