200分问深度问题:如何访问webbrowser中的object

网页中有个对象,我想访问或改变其PARAM值,怎么做?分可在
http://topic.csdn.net/u/20090924/15/4f428f58-5e70-4868-af93-704bb941c6d8.html
http://topic.csdn.net/u/20090925/18/37f75c34-4831-4351-ae8e-7f83cc058e1d.html
结,问题未解决.附网页源码:
<OBJECT id=SopPlayer codeBase=http://download.sopcast.cn/download/SOPCORE.CAB#version=1,1,2,0 type=application/x-oleobject height="100%" width="100%" align=absMiddle classid=clsid:8FEFF364-6A5F-4966-A917-A3AC28411659><PARAM NAME="_Version" VALUE="196610"><PARAM NAME="_ExtentX" VALUE="15425"><PARAM NAME="_ExtentY" VALUE="10742"><PARAM NAME="_StockProps" VALUE="0"><PARAM NAME="UserID" VALUE="0"><PARAM NAME="Username" VALUE=""><PARAM NAME="Password" VALUE=""><PARAM NAME="Language" VALUE='\"cn_CH\"'><PARAM NAME="SopAddress" VALUE="sop://211.152.36.38:3912/11936"><PARAM NAME="ChannelName" VALUE="上海国际频道"><PARAM NAME="CookieString" VALUE=""><PARAM NAME="AuthUrl" VALUE=""><PARAM NAME="ServAddress" VALUE=""></OBJECT></BODY>