web based xmlBlaster client Question

[Budi Wiyono <budiw at idola.net.id>]

Dear All,

I have several question regarding to web based xmlBlaster client, with 
persistent HTTP connection.
1.  Which is the better one, applet, activex, or Servlet + Javascript ?
2.  If we are talking about huge web server load of a lot of web client. 
How about performance issue
     regarding to the web server load ? Can we still use this solution ? 
Or we need something like multicast/other technics ?
3.  How much web client connection we can run ? (with considering web 
bottleneck and xmlBlaster capacity).

It's would be great if anyone give us web based client rule of thumb.

Thank You for your help.