program CrtApp;

uses
  SysUtils, WinTypes, WinProcs, WinCrt;

var
  NumInstances, SavePrevInst: word;

procedure GetInstanceData(hInst, Offset, Size: Word); far; external 'KERNEL';
begin
  SavePrevInst := hPrevInst;
  NumInstances := 0;
  while hPrevInst <> 0 do
  begin
    GetInstanceData(hPrevInst, Ofs(hPrevInst), SizeOf(hPrevInst));
    Inc(NumInstances);
  end;
  Writeln('Уже запущено ', NumInstances, ' копий программы');
  hPrevInst := SavePrevInst;
end.