XAP Caching in Silverlight OOB, when using Prism

I have a开发者_如何学运维 Silverlight Out Of Browser Application built using Prism Framework. I am using WebClient to download the application module XAPs depending on the user logged in to the application.

Now my Question is will these other XAPs which I am downloading explicitly be cached when running OOB.

If yes where will it be cached, and how can I check for updates like CheckAndDownloadUpdateAsync which I can use only for the main installed XAP.