Thread Problems

Found this from MSDN->codeguru, can't seem to figure out the problem....

class ThreadClass {
protected:
    HANDLE m_hThread; //Thread handle
    bool m_bActive; //activity indicator
    DWORD m_lpId; //Thread ID
public:
    ThreadClass(){}
    virtual ~ThreadClass(){Kill();}
    //Thread Management
    bool CreateNewThread() {
        m_hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)_ThreadFunc,
(LPVOID) this, 0, (LPDWORD) &m_lpId);
        if (m_hThread == NULL) return false;
        m_bActive = true;
        return true;
    };
    //Wait for thread to end
    bool Wait() {return (WAIT_OBJECT_0 == WaitForSingleObject(m_hThread,
INFINITE));}
    bool Suspend(){
         m_bActive = false;
         return(-1 != SuspendThread(m_hThread));
    };
    //Suspend the thread
    bool Resume() {
        m_bActive = true;
        return(-1 != ResumeThread(m_hThread));
    };
     //Resume a suspended thread
    bool Kill() {return TerminateThread(m_hThread, 1);}
    //Terminate a thread
    bool IsActive() {return m_bActive;}
     //Check for activity
    //override these functions in the derived class
    virtual void ThreadEntry(){ }
    virtual void ThreadExit(){ }
    virtual void Run(){ }
     //a friend
    friend DWORD WINAPI _ThreadFunc(LPVOID pvThread);
};

DWORD WINAPI _ThreadFunc(LPVOID pvThread) {
    ThreadClass* pThread = (ThreadClass*)pvThread; //typecast
    pThread->ThreadEntry(); //initialize
    pThread->Run();
    pThread->ThreadExit(); //finalize
    return 0;
};

class MyThread :: public ThreadClass
{
 virtual void ThreadEntry()
 {
  //Initialize
 }

 virtual void ThreadExit()
 {
  //Finalize
 }

 virtual void Run()
 {
  //do something
 }
};