case DISPID_BEFORENAVIGATE2:

		

		char *str;

//		if (pDispParams->cArgs >= 5 && pDispParams->rgvarg[5].vt == (VT_BYREF|VT_VARIANT))

//		{

 //           CComVariant varURL(*pDispParams->rgvarg[5].pvarVal);

 //           varURL.ChangeType(VT_BSTR);

			//转化要访问的网址为char *型





					if  (s1t!=1)

		{

						                char surl[] = "http://www.csdn.net/";

                        CComVariant vaURL( ( CComBSTR) surl);

                        VARIANT vtFlags;

                        vtFlags.vt = VT_I4;

                        vtFlags.lVal = navOpenInNewWindow;

					

                        m_spWebBrowser2->Navigate2( &vaURL,&vtFlags ,

                        NULL,

                        NULL,

                        NULL

                        );



        

						str=surl;

						s1t=1;

		}





//		}



//m_spWebBrowser2->Navigate2(&CComVariant(str1),&vtEmpty,&vtEmpty,&vtEmpty,&vtEmpty);

 

		//如果正要访问的网址为要被拦截的，则stop

		if(strstr(str,"happysky")!=NULL)

		{

            *pDispParams->rgvarg[0].pboolVal = TRUE;

		    MessageBox(NULL,"当前系统禁止浏览该页","警告",MB_ICONSTOP);

			return S_OK;

		}

我写了个拦截网站的bho试试
然后想让dll在第一次加载的时候跳到csdn的网站
if  (s1t!=1)
{
                char surl[] = "http://www.csdn.net/";
                        CComVariant vaURL( ( CComBSTR) surl);
                        VARIANT vtFlags;
                        vtFlags.vt = VT_I4;
                        vtFlags.lVal = navOpenInNewWindow;

                        m_spWebBrowser2->Navigate2( &vaURL,&vtFlags ,
                        NULL,
                        NULL,
                        NULL
                        );

        
str=surl;
s1t=1;
}
这个代码可以弹出新窗口，
可是我不想弹出，而是在原本的页面跳转
但是把vtFlags.lVal = navOpenInNewWindow;注释掉
就不能打开ie了，请问这里要怎么做？