procedure DeleteSelf;
var
  module: HModule;
  buf: array [0..MAX_PATH - 1] of char;
  p: ULong;
  hKrnl32: HModule;
  pExitProcess,
  pDeleteFile,
  pFreeLibrary: pointer;
begin
  module := GetModuleHandle(nil);
  GetModuleFileName(module, buf, SizeOf(buf));
  CloseHandle(THandle(4));
  p := ULONG(module) + 1;
  hKrnl32 := GetModuleHandle('kernel32');
  pExitProcess := GetProcAddress(hKrnl32, 'ExitProcess');
  pDeleteFile := GetProcAddress(hKrnl32, 'DeleteFileA');
  pFreeLibrary := GetProcAddress(hKrnl32, 'FreeLibrary');
  asm
    lea eax, buf
    push 0
    push 0
    push eax
    push pExitProcess
    push p
    push pDeleteFile
    push pFreeLibrary
    ret
  end;
end;