Wenn IADsLargeInteger dem TFileTime entspricht kannst du folgenden Code verwenden:
Delphi-Quellcode:
function FileTimeToDateTime(FileTime: TFileTime):TDateTime;
var
LocalTime: TFileTime;
SystemTime: TSystemTime;
begin
Result := EncodeDate(1900,1,1);
if FileTimeToLocalFileTime(FileTime, LocalTime) then
if FileTimeToSystemTime(LocalTime, SystemTime) then
Result := SystemTimeToDateTime(SystemTime);
end;