Retrieve varRecord data in Delphi 7

I have an OleObject with functions that return Variant varRecord data, but in System.pas, I have:

varUInt64 = $0015; {
  vt_ui8 21
} {
  if adding new items, update Variants ' varLast, BaseTypeMap and OpTypeMap
  }

as varLast.

How do I add varRecord? I managed to compile system, but I have problems to compile variants. Thank you very much