Now, of course if the application silo contains 10 servers, it will open up one session on the least busy one, not a session on every server. If you are in a silo that is exactly what happens, and there is really no way around this. Here's one you might be wondering about: What happens if I silo my applications on servers? Because each application gets its own set of servers and I have 10 silos, does that mean that the user will have an empty session on each silo of servers? The answer is simply, yes. It is a very smart and intuitive way of masking the process and significantly enhancing the user experience. This is an empty session, but it manages the entire pre-launching functionality so that when you are ready to click on a published resource, you get that resource instantly without waiting. As soon as you login to Citrix Receiver and your applications are enumerated, an empty session is opened in the background for you on the XenApp server. The magic behind this functionality is quite simple. So instead of the traditional login and wait for your profile to be created locally, settings to be applied, policies and so on, Instant App Access gives instant access to your applications - as soon as you click on an application you are ready to use it.

One of the coolest features of Citrix XenApp 6.5 has got to be the new Instant App Access feature, what this does is dramatically reduce the amount of time it takes to launch published applications.

Application streaming citrix xenapp 6.5