Where is .NET “Isolated Storage” stored?

Question

Where would the physical files be?

Answer 1

It depends on the OS and whether or not roaming user profiles are enabled.

For example, on XP, with non-roaming profiles, the location is

<SYSTEMDRIVE>\Documents and Settings\<user>\Local Settings\Application Data\Microsoft\IsolatedStorage 

On Vista with roaming profile storage,

<SYSTEMDRIVE>\Users\<user>\AppData\Roaming\Microsoft\IsolatedStorage

See an Introduction to Isolated Storage for more info.