Q:

Is silverlight scalable?

Is silverlight more scalable then HTML. I found out that silverlight code runs on the client except whrn it has to update or fetch data from the server. Will my application be more responsive if I develop it in silverlight. I am not worried about end users installing silverlight on the clients. I am in a position to install silverlight on clients myself.
i just need to know if I develop a silverlight application will it make my application more scalable and/or responsive 

A:

Silverlight applications are, for all intents and purposes, "fat client" applications delivered over the web.  Their code is executed on the local machine, and communication with a data store is conducted over WCF web services, which are usually wrapped by RIA Services.
Silverlight applications are quite responsive once loaded.  Building a well-performing UI in Silverlight may be a little more challenging than it would be in WPF, but not by much.

