[dec]

Hola,

Una posible forma:

Código Delphi [-]
uses
  TlHelp32;

function MatarProcesos(nombre: string): boolean;
var
  moduleEntry: TModuleEntry32;
  processEntry: TProcessEntry32;
  hSnapshot, hProcess: cardinal;
begin
  result := false;
  moduleEntry.dwSize := SizeOf(TModuleEntry32);
  processEntry.dwSize := SizeOf(TProcessEntry32);
  hSnapshot := CreateToolHelp32Snapshot(TH32CS_SNAPPROCESS,0);
  if Process32First(hSnapshot,processEntry) then
  begin
    repeat
      if (lstrcmpi(PChar(nombre),@processEntry.szExeFile) = 0) then
      begin
        hProcess := OpenProcess(PROCESS_TERMINATE,
                     false,processEntry.th32ProcessID);
        result := TerminateProcess(hProcess,0);
        CloseHandle(hProcess);
      end;
    until not Process32Next(hSnapshot,processEntry);
  end;
  CloseHandle(hSnapshot);
end;

procedure TForm2.Button1Click(Sender: TObject);
begin
  MatarProcesos('calc.exe');
end;