怎么用msxml解析带名字空间的XML文件

如何用msxml解析带名字空间的XML文件?
我要解析的XML文件如下
<ns:getvideoResponse xmlns:ns="http://pu.webService.huiju.junze.com">
- <ns:return xmlns:ax25="http://pu.adapter.huiju.junze.com/xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ax25:PuResultBean">
 <ax25:item>
  <ax25:puid_ChinaelNo xsi:nil="true" /> 
  <ax25:videoAdd>环城北路与人民路路口交界处</ax25:videoAdd> 
  <ax25:videoDirection>-1</ax25:videoDirection> 
  <ax25:videoHttpAdd>http://61.153.83.184/msp/service?UserId=121500200000412000&PuId-ChannelNo=121500000100000110-02&PlayMethod=0&StartTime=0&EndTime=0&Offset=0&PuProperty=0&VauPtzAdd=61.153.83.185&VauPtzPort=3333&VauRtspAdd=61.153.83.185&VauRtspPort=554&StreamingType=2</ax25:videoHttpAdd> 
  <ax25:videoId>81</ax25:videoId> 
  <ax25:videoInCityid>21</ax25:videoInCityid> 
  <ax25:videoInCountyId>6</ax25:videoInCountyId> 
  <ax25:videoInRoadId>90</ax25:videoInRoadId> 
  <ax25:videoLat>29.89899</ax25:videoLat> 
  <ax25:videoLon>121.56961</ax25:videoLon> 
  <ax25:videoName>环城北路人民路口</ax25:videoName> 
  <ax25:videoOnlineFlg>0</ax25:videoOnlineFlg> 
  <ax25:videoRtspAdd>rtsp://61.153.83.185:554/service?UserId=121500200000412000&PuId-ChannelNo=121500000100000110-02&PlayMethod=0&StartTime=0&EndTime=0&Offset=0&PuProperty=0&StreamingType=2</ax25:videoRtspAdd> 
  </ax25:item> 
  <ax25:videoCount>52</ax25:videoCount> 
  </ns:return>
  </ns:getvideoResponse>

------解决方案--------------------
用tinyxml吧,方便