Id.dat records the ID of the current application
Quota.dat records the current application's isolated storage quotas, that is, storage space size
Used.dat record already used space
In the other S folder you can find the directories and files that we created, and you can open the file to see what's stored, as shown in the following illustration:
disabling isolated Storage
Now let's think about a problem, since isolated storage is a local trust mechanism similar to the cookie mechanism, can we also disable isolated storage? The answer is naturally positive. When you right-click on the Silverlight application, select the Silverlight Configuration menu and you will see the following window:
Here we can see the size of each application's storage space and the space it is currently using; You can remove the ability of an application to store data independently or to disable isolated storage.