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if FindFirst('?????? *.gbk', faAnyFile, FileInfo) = 0 then					

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procedure FildDBFiles;
var SearchRec: TSearchRec;
const FileAttrs = faReadOnly + faArchive;
begin
  fList.Clear;
  if FindFirst('C:\??????*.gbk', FileAttrs, SearchRec) = 0 then
  begin
    try
      repeat
        if (SearchRec.Attr and FileAttrs) = (SearchRec.Attr and faAnyFile) then
        begin
          { Datei gefunden; in SearchRec.Name gespeichert (C:\ muss noch davor) }
        end;
      until FindNext(SearchRec) <> 0;
    finally
      FindClose(SearchRec);
    end;
  end;

  if Assigned(fOnChange) then fOnChange(Self);
end;