檢測指定名稱的服務運行狀態，若服務暫停則恢復服務，若服務停止則啟動服務。 
BOOL DetectService(char* ServiceName)
{
    SC_HANDLE hSC = ::OpenSCManager( NULL,  NULL, GENERIC_EXECUTE);
    if( hSC == NULL)
    {
        return false;
    }
    // 打開服務
    SC_HANDLE hSvc = ::OpenService( hSC, ServiceName,
        SERVICE_START | SERVICE_QUERY_STATUS | SERVICE_STOP);
    if( hSvc == NULL)
    {
        return false;
        ::CloseServiceHandle( hSC);
    }
    // 獲得服務的狀態
    SERVICE_STATUS status;
    if( ::QueryServiceStatus( hSvc, &status) == FALSE)
    {
        return false;
        ::CloseServiceHandle( hSvc);
        ::CloseServiceHandle( hSC);
    }
    ofstream outfile;
    outfile.open(".\\檢測結果.txt",ios::app);
    //服務已啟動
    if( status.dwCurrentState == SERVICE_RUNNING)
    {
        outfile<<"服務";
        outfile<<ServiceName;
        outfile<<"已啟動 \n";
        return true;
    }

    //如果處于停止狀態則啟動服務
    if( status.dwCurrentState == SERVICE_STOPPED)
    {   
        outfile<<"服務";
        outfile<<ServiceName;
        outfile<<"處于停止狀態 \n";

        // 啟動服務
        if( ::StartService( hSvc, NULL, NULL) == FALSE)
        {
            return false;
            ::CloseServiceHandle( hSvc);
            ::CloseServiceHandle( hSC);
        }
        // 等待服務啟動
        while( ::QueryServiceStatus( hSvc, &status) == TRUE)
        {
           // ::Sleep( status.dwWaitHint);
            if( status.dwCurrentState == SERVICE_RUNNING)
            {
                ::CloseServiceHandle( hSvc);
                ::CloseServiceHandle( hSC);
                outfile<<"啟動成功 \n";
                return true;
            }
        }
    }

    //如果處于暫停狀態，則恢復
    if( status.dwCurrentState == SERVICE_PAUSED)
    {
        outfile<<"服務";
        outfile<<ServiceName;
        outfile<<"處于停止狀態 \n";
        CString str;
        str.Format("net continue %s",ServiceName);
        WinExec(str,SW_SHOW);
        while( ::QueryServiceStatus( hSvc, &status) == TRUE)
        {
            if( status.dwCurrentState == SERVICE_RUNNING)
            {
                ::CloseServiceHandle( hSvc);
                ::CloseServiceHandle( hSC);
                outfile<<"恢復服務成功 \n";
                return true;
            }
        }
    }
    outfile<<"\n";
    outfile.close();
    ::CloseServiceHandle( hSvc);
    ::CloseServiceHandle( hSC);
    return false;
}
http://blog.csdn.net/suiyuan1767/article/details/6712516