怎么中断正在执行 DOS命令行 的线程

如何中断正在执行 DOS命令行 的线程?
这是我的代码,   怎么停止它?
//-------------------------------
cmd   =   "cmd.exe   /c   xxxxx ";//调用dos命令,可能执行很长时间
Create_Process(cmd,false);

void   Create_Process(char*   cmd,   BOOL   async)//超线程代码
{
HANDLE   hProcess;
HANDLE   hThread;
PROCESS_INFORMATION   PI;
STARTUPINFO   SI;

memset(&SI,   0,   sizeof(SI));
SI.cb   =   sizeof(SI);
GetStartupInfo(&SI);
SI.wShowWindow=SW_HIDE;
SI.dwFlags=1;
CreateProcess(NULL,temp_exe,   NULL,   NULL,   true,CREATE_NEW_CONSOLE,   NULL,   NULL,   &SI,   &PI);
hProcess   =   PI.hProcess;
hThread   =   PI.hThread;
if   (!async)WaitForSingleObject(hProcess,   INFINITE);
}


[解决办法]
暂停它的主线程SuspendThread(PI-> hThread)
[解决办法]
if(MyThread!=NULL)
{
MyThread-> Terminate();
DWORD dwExitCode;
GetExitCodeThread( (void *)MyThread-> Handle ,&dwExitCode) ;
if(dwExitCode == STILL_ACTIVE )
TerminateThread( (void *)MyThread-> Handle, dwExitCode);
MyThread = NULL;
}