Changes

     int InsertExternalLocations(CSystemFids *, CFastBuffer<CSystemFids *> *);

     int InsertExternalLocations(CSystemFids *, CFastBuffer<CSystemFids *> *);

     int ExtractExternalLocations(CFastBuffer<CSystemFids *> * &, CSystemFidsDrive *);

     int ExtractExternalLocations(CFastBuffer<CSystemFids *> * &, CSystemFidsDrive *);

     int LoadCurrentHeader(enum EVersion);

     int LoadCurrentHeader(enum EVersion); // Reads the file header of a .gbx file

     int DoLoadHeader(void);      // Reads the file header of a .gbx file

     int DoLoadHeader(void);      // Reads the magic 'GBX' and version of a .gbx file, and then calls LoadCurrentHeader()

     int DoSaveHeader(void);

     int DoSaveHeader(void);

     int DoLoadRef(void);        // Reads the reference table of a .gbx file

     int DoLoadRef(void);        // Reads the reference table of a .gbx file