Как "убить" процесс, зная его pid?

bool KillProcByPid(DWORD pid)
{
DWORD ExitCode;
HANDLE hp;
bool ret = true;

if(pid)
        {
        hp = OpenProcess(PROCESS_ALL_ACCESS, true, pid);
        if (hp)
                {
                GetExitCodeProcess(hp, &ExitCode);
                ret = TerminateProcess(hp, ExitCode);
                }
        else
                {
                return false;
                }
        }
else
        {
        return false;
        }

CloseHandle(hp);
return ret;
}